# MPEP § 501: Filing Papers With the U.S. Patent and Trademark Office

> Federal · Agency guidance · In force

URL: https://www.frixlaw.com/law-library/statutes/MPEP_S501

## Section

- **Citation:** MPEP § 501
- **Heading:** Filing Papers With the U.S. Patent and Trademark Office
- **Jurisdiction:** Federal
- **Kind:** Agency guidance
- **Status:** In force
- **Text as of:** August 14, 2026
- **Source:** Compiled text
- **Location:** USPTO MPEP / Chapter 0500 - Receipt and Handling of Mail and Papers / MPEP § 501

## Text

37 CFR 1.1  Addresses for non-trademark correspondence with the United States Patent and
Trademark Office.
(a)
In general.
Except for correspondence submitted via the U.S.
Patent and Trademark Office (USPTO) patent electronic filing system in accordance
with § 1.6(a)(4), all correspondence intended for the USPTO must be addressed to
either “Director of the United States Patent and Trademark Office, P.O. Box 1450,
Alexandria, Virginia 22313-1450” or to specific areas within the Office provided
in this section. When appropriate, correspondence should also be marked for the
attention of a particular office or individual.
(1)
Patent correspondence.
(i)
In general.
All correspondence concerning patent
matters processed by organizations reporting to the Commissioner for
Patents should be addressed to: Commissioner for Patents, P.O. Box
1450, Alexandria, Virginia 22313-1450.
(ii)
Patent Trial and Appeal Board.
See
§ 41.10
or
§
42.6
of this title. Notices of appeal, appeal
briefs, reply briefs, requests for oral hearing, as well as all other
correspondence in an application or a patent involved in an appeal to
the Board for which an address is not otherwise specified, should be
addressed as set out in paragraph (a)(1)(i) of this section.
(2) [Reserved]
(3)
Office of General Counsel correspondence.
—
(i)
Litigation and service.
Correspondence relating to pending litigation or otherwise
within the scope of part 104 of this title shall be addressed as
provided in
§ 104.2
.
(ii)
Disciplinary proceedings.
Correspondence to counsel for the Director of the Office of
Enrollment and Discipline relating to disciplinary proceedings pending
before a Hearing Officer or the Director shall be mailed to: Mail Stop
8, Office of the Solicitor, United States Patent and Trademark Office,
P.O. Box 1450, Alexandria, Virginia 22313-1450.
itle shall be addressed as
provided in
§ 104.2
.
(ii)
Disciplinary proceedings.
Correspondence to counsel for the Director of the Office of
Enrollment and Discipline relating to disciplinary proceedings pending
before a Hearing Officer or the Director shall be mailed to: Mail Stop
8, Office of the Solicitor, United States Patent and Trademark Office,
P.O. Box 1450, Alexandria, Virginia 22313-1450.
(iii)
Solicitor, in general.
Correspondence to the Office of the Solicitor not otherwise
provided for shall be addressed to: Mail Stop 8, Office of the
Solicitor, United States Patent and Trademark Office, P.O. Box 1450,
Alexandria, Virginia 22313-1450.
(iv)
General Counsel.
Correspondence to the Office of
the General Counsel not otherwise provided for, including
correspondence to the General Counsel relating to disciplinary
proceedings, shall be addressed to: General Counsel, United States
Patent and Trademark Office, P.O. Box 1450, Alexandria, Virginia
22313-1450.
(v)
Improper correspondence.
Correspondence improperly
addressed to a Post Office Box specified in paragraphs (a)(3)(i) and
(a)(3)(ii) of this section will not be filed elsewhere in the United
States Patent and Trademark Office, and may be returned.
(4)
Office of Public Records correspondence.
(i)
Assignments.
All patent-related documents submitted
by mail to be recorded by Assignment Services Division, except for
documents filed together with a new application, should be addressed
to: Mail Stop Assignment Recordation Services, Director of the United
States Patent and Trademark Office, P.O. Box 1450, Alexandria,
Virginia 22313-1450.
See
§
3.27
.
(ii)
Documents.
All requests for certified or
uncertified copies of patent documents should be addressed to: Mail
Stop Document Services, Director of the United States Patent and
Trademark Office, P.O. Box 1450, Alexandria, Virginia 22313-1450.
op Assignment Recordation Services, Director of the United
States Patent and Trademark Office, P.O. Box 1450, Alexandria,
Virginia 22313-1450.
See
§
3.27
.
(ii)
Documents.
All requests for certified or
uncertified copies of patent documents should be addressed to: Mail
Stop Document Services, Director of the United States Patent and
Trademark Office, P.O. Box 1450, Alexandria, Virginia 22313-1450.
(5)
Office of Enrollment and Discipline correspondence.
All
correspondence directed to the Office of Enrollment and Discipline
concerning enrollment, registration, and investigation matters should be
addressed to Mail Stop OED, Director of the United States Patent and
Trademark Office, P.O. Box 1450, Alexandria, Virginia 22313-1450.
(b)
Patent Cooperation Treaty.
Letters and other communications relating to international applications
during the international stage and prior to the assignment of a national serial
number should be additionally marked “Mail Stop PCT.”
(c)
For reexamination or supplemental examination
proceedings.
(1) All correspondence concerning
ex parte
reexamination, other than correspondence to the Office of the General
Counsel pursuant to
§ 1.1(a)(3)
and
§
102.04
of this chapter, should be additionally marked
“Mail Stop
Ex Parte
Reexam.”
(2) All correspondence concerning
inter
partes
reexamination, other than correspondence to the Office
of the General Counsel pursuant to
§ 1.1(a)(3)
and
§
102.4
of this chapter, should be additionally marked
‘‘Mail Stop
Inter Partes
Reexam.’’
(3) Requests for supplemental examination
(original and corrected request papers) and any other paper filed in a
supplemental examination proceeding, should be additionally marked ‘‘Mail
Stop Supplemental Examination.’’
(4) All correspondence concerning a reexamination
proceeding ordered as a result of a supplemental reexamination proceeding,
other than correspondence to the Office of the General Counsel pursuant to
§
1.1(a)(3)
and
§ 102.4
of this chapter
should be additionally marked “Mail Stop
Ex Parte
Reexam.”
emental examination proceeding, should be additionally marked ‘‘Mail
Stop Supplemental Examination.’’
(4) All correspondence concerning a reexamination
proceeding ordered as a result of a supplemental reexamination proceeding,
other than correspondence to the Office of the General Counsel pursuant to
§
1.1(a)(3)
and
§ 102.4
of this chapter
should be additionally marked “Mail Stop
Ex Parte
Reexam.”
(d) Payments of maintenance fees. Payments of patent maintenance fees
that are not submitted electronically and correspondence related to maintenance
fees may be addressed to: Mail Stop Maintenance Fee, Director of the United States
Patent and Trademark Office, P.O. Box 1450, Alexandria, Virginia 22313-1450.
(e)
Patent term extension.
All applications for extension of patent
term under
35 U.S.C. 156
and any communications relating thereto
intended for the United States Patent and Trademark Office should be additionally
marked “Mail Stop Hatch-Waxman PTE.” When appropriate, the communication should
also be marked to the attention of a particular individual, as where a decision
has been rendered.
(f) [Reserved]
37 CFR 1.4  Nature of correspondence and signature requirements.
(a) Correspondence with the Patent and Trademark Office comprises:
(1) Correspondence relating to services and facilities of the
Office, such as general inquiries, requests for publications supplied by the
Office, orders for printed copies of patents, orders for copies of records,
transmission of assignments for recording, and the like, and
1.4  Nature of correspondence and signature requirements.
(a) Correspondence with the Patent and Trademark Office comprises:
(1) Correspondence relating to services and facilities of the
Office, such as general inquiries, requests for publications supplied by the
Office, orders for printed copies of patents, orders for copies of records,
transmission of assignments for recording, and the like, and
(2)
Correspondence in and relating to a particular application or other
proceeding in the Office.
See particularly the rules relating
to the filing, processing, or other proceedings of national applications in
subpart B of this part; of international applications in subpart C of this
part; of
ex parte
reexaminations of patents in subpart D
of this part; of supplemental examination of patents in subpart E of this
part; of extension of patent term in subpart F of this part; of
inter partes
reexaminations of patents in subpart H of
this part; of international design applications in subpart I of this part;
and of the Patent Trial and Appeal Board in parts 41 and 42 of this
chapter.
(b) Since each file must be complete in itself, a separate copy of
every paper to be filed in a patent, patent file, or other proceeding must be
furnished for each file to which the paper pertains, even though the contents of
the papers filed in two or more files may be identical. The filing of duplicate
copies of correspondence in the file of an application, patent, or other
proceeding should be avoided, except in situations in which the Office requires
the filing of duplicate copies. The Office may dispose of duplicate copies of
correspondence in the file of an application, patent, or other proceeding.
he contents of
the papers filed in two or more files may be identical. The filing of duplicate
copies of correspondence in the file of an application, patent, or other
proceeding should be avoided, except in situations in which the Office requires
the filing of duplicate copies. The Office may dispose of duplicate copies of
correspondence in the file of an application, patent, or other proceeding.
(c) Since different matters may be considered by different branches or
sections of the Office, each distinct subject, inquiry or order must be contained
in a separate paper to avoid confusion and delay in answering papers dealing with
different subjects. Subjects provided for on a single Office or World Intellectual
Property Organization form may be contained in a single paper.
(d)
(1)
Handwritten signature.
A design patent practitioner must
indicate their design patent practitioner status by placing the word
“design” (in any format) adjacent to their handwritten signature. Each piece
of correspondence, except as provided in paragraphs (d)(2) through (4), (e)
and (f) of this section, filed in an application, patent file, or other
proceeding in the Office that requires a person’s signature, must:
(i) Be an original, that is, have an original handwritten
signature personally signed, in permanent dark ink or its equivalent,
by that person; or
(ii) Be a direct or indirect copy, such as a photocopy or
facsimile transmission (
§ 1.6(d)
), of an
original. In the event that a copy of the original is filed, the
original should be retained as evidence of authenticity. If a question
of authenticity arises, the Office may require submission of the
original.
(2)
S-signature.
An S-signature is a signature inserted
between forward slash marks, but not a handwritten signature as defined by
paragraph (d)(1) of this section. An S-signature includes any signature made
by electronic or mechanical means, and any other mode of making or applying
a signature other than a handwritten signature as provided for in paragraph
may require submission of the
original.
(2)
S-signature.
An S-signature is a signature inserted
between forward slash marks, but not a handwritten signature as defined by
paragraph (d)(1) of this section. An S-signature includes any signature made
by electronic or mechanical means, and any other mode of making or applying
a signature other than a handwritten signature as provided for in paragraph
(d)(1) of this section. Correspondence being filed in the Office in paper,
by facsimile transmission as provided in
§ 1.6(d)
, or via the
USPTO patent electronic filing system as an attachment as provided in
§
1.6(a)(4)
, for a patent application, patent, or a
reexamination or supplemental examination proceeding may be S-signature
signed instead of being personally signed (i.e., with a handwritten
signature) as provided for in paragraph (d)(1) of this section. The
requirements for an S-signature under this paragraph (d)(2) of this section
are as follows.
(i) The S-signature must consist only of letters, or
Arabic numerals, or both, with appropriate spaces and commas, periods,
apostrophes, or hyphens for punctuation, and the person signing the
correspondence must insert his or her own S-signature with a first
single forward slash mark before, and a second single forward slash
mark after, the S-signature (
e.g.,
/Dr. James T.
Jones, Jr./); and
(ii) A patent practitioner (
§
1.32(a)(1)
), signing pursuant to
§
1.33(b)(1)
or
th, with appropriate spaces and commas, periods,
apostrophes, or hyphens for punctuation, and the person signing the
correspondence must insert his or her own S-signature with a first
single forward slash mark before, and a second single forward slash
mark after, the S-signature (
e.g.,
/Dr. James T.
Jones, Jr./); and
(ii) A patent practitioner (
§
1.32(a)(1)
), signing pursuant to
§
1.33(b)(1)
or
(2)
, must supply their registration number
either as part of the S-signature or immediately below or adjacent to
the S-signature. The hash (#) character may only be used as part of
the S-signature when appearing before a practitioner’s registration
number; otherwise, the hash character may not be used in an
S-signature. A design patent practitioner must additionally indicate
their design patent practitioner status by placing the word “design”
(in any format) adjacent to the last forward slash of their
S-signature.
(iii) The signer’s name must be:
(A) Presented in printed or typed form preferably
immediately below or adjacent the S-signature, and
(B) Reasonably specific enough so that the identity
of the signer can be readily recognized.
(3) Electronically submitted correspondence. Correspondence
permitted via the USPTO patent electronic filing system may be signed by a
graphic representation of a handwritten signature as provided for in
paragraph (d)(1) of this section or a graphic representation of an
S-signature as provided for in paragraph (d)(2) of this section when it is
submitted via the USPTO patent electronic filing system.
(4) Certifications—
mitted correspondence. Correspondence
permitted via the USPTO patent electronic filing system may be signed by a
graphic representation of a handwritten signature as provided for in
paragraph (d)(1) of this section or a graphic representation of an
S-signature as provided for in paragraph (d)(2) of this section when it is
submitted via the USPTO patent electronic filing system.
(4) Certifications—
(i) Certification as to the paper presented.
The presentation to the Office (whether by signing, filing,
submitting, or later advocating) of any paper by a party, whether a
practitioner or non-practitioner, constitutes a certification under
§
11.18(b)
of this subchapter. Violations of
§
11.18(b)(2)
of this subchapter by a party,
whether a practitioner or non-practitioner, may result in the
imposition of sanctions under
§ 11.18(c)
of this
subchapter. Any practitioner violating
§
11.18(b)
of this subchapter may also be subject
to disciplinary action. See
§ 11.18(d)
of this
subchapter.
(ii)
Certifications as to the signature.
The person
inserting a signature under paragraph (d)(2) or (d)(3) of this section
in a document submitted to the Office certifies that the inserted
signature appearing in the document is his or her own signature. A
person submitting a document signed by another under paragraph (d)(2)
or (d)(3) of this section is obligated to have a reasonable basis to
believe that the person whose signature is present on the document was
actually inserted by that person, and should retain evidence of
authenticity of the signature. Violations of the certification as to
the signature of another or a person’s own signature as set forth in
this paragraph may result in the imposition of sanctions under
§
11.18(c) and (d)
of this chapter.
o have a reasonable basis to
believe that the person whose signature is present on the document was
actually inserted by that person, and should retain evidence of
authenticity of the signature. Violations of the certification as to
the signature of another or a person’s own signature as set forth in
this paragraph may result in the imposition of sanctions under
§
11.18(c) and (d)
of this chapter.
(5)
Forms.
The Office provides forms for the public to use in
certain situations to assist in the filing of correspondence for a certain
purpose and to meet certain requirements for patent applications and
proceedings. Use of the forms for purposes for which they were not designed
is prohibited. No changes to certification statements on the Office forms
(e.g., oath or declaration forms, terminal disclaimer forms, petition forms,
and nonpublication request forms) may be made. The existing text of a form,
other than a certification statement, may be modified, deleted, or added to,
if all text identifying the form as an Office form is removed. The
presentation to the Office (whether by signing, filing, submitting, or later
advocating) of any Office form with text identifying the form as an Office
form by a party, whether a practitioner or non-practitioner, constitutes a
certification under
§ 11.18(b)
of this
chapter that the existing text and any certification statements on the form
have not been altered other than permitted by EFS-Web customization.
(e) [Reserved]
(f) When a document that is required by statute to be certified must
be filed, a copy, including a photocopy or facsimile transmission, of the
certification is not acceptable.
actitioner, constitutes a
certification under
§ 11.18(b)
of this
chapter that the existing text and any certification statements on the form
have not been altered other than permitted by EFS-Web customization.
(e) [Reserved]
(f) When a document that is required by statute to be certified must
be filed, a copy, including a photocopy or facsimile transmission, of the
certification is not acceptable.
(g) An applicant who has not made of record a registered attorney or
agent may be required to state whether assistance was received in the preparation
or prosecution of the patent application, for which any compensation or
consideration was given or charged, and if so, to disclose the name or names of
the person or persons providing such assistance. Assistance includes the
preparation for the applicant of the specification and amendments or other papers
to be filed in the Patent and Trademark Office, as well as other assistance in
such matters, but does not include merely making drawings by draftsmen or
stenographic services in typing papers.
(h)
Ratification/confirmation/evidence of authenticity:
The Office
may require ratification, confirmation (which includes submission of a duplicate
document but with a proper signature), or evidence of authenticity of a signature,
such as when the Office has reasonable doubt as to the authenticity (veracity) of
the signature,
e.g.,
where there are variations of a signature,
or where the signature and the typed or printed name, do not clearly identify the
person signing.
37 CFR 2.190 Addresses for trademark correspondence with the
United States Patent and Trademark Office.
nature), or evidence of authenticity of a signature,
such as when the Office has reasonable doubt as to the authenticity (veracity) of
the signature,
e.g.,
where there are variations of a signature,
or where the signature and the typed or printed name, do not clearly identify the
person signing.
37 CFR 2.190 Addresses for trademark correspondence with the
United States Patent and Trademark Office.
(a)
Paper trademark documents.
In
general, trademark documents to be delivered by the USPS must be addressed to:
Commissioner for Trademarks, P.O. Box 1451, Alexandria, VA 22313-1451.
Trademark-related documents to be delivered by hand, private courier, or other
delivery service may be delivered during the hours the Office is open to receive
correspondence to the Trademark Assistance Center, James Madison Building—East
Wing, Concourse Level, 600 Dulany Street, Alexandria, Virginia 22314.
(b)
Electronic trademark
documents.
Trademark documents filed electronically must be submitted
through TEAS. Documents that relate to proceedings before the Trademark Trial and
Appeal Board must be filed electronically with the Board through ESTTA.
(c)
Trademark assignment
documents.
Requests to record documents in the Assignment Recordation
Branch may be filed electronically through ETAS. Paper documents and cover sheets
to be recorded in the Assignment Recordation Branch should be addressed as
designated in § 3.27 of this chapter.
(d)
Requests for certified copies of trademark
documents.
Paper requests for certified copies of trademark documents
must be addressed to: Mail Stop Document Services, Director of the United States
Patent and Trademark Office, P.O. Box 1450, Alexandria, Virginia 22313-1450.
cover sheets
to be recorded in the Assignment Recordation Branch should be addressed as
designated in § 3.27 of this chapter.
(d)
Requests for certified copies of trademark
documents.
Paper requests for certified copies of trademark documents
must be addressed to: Mail Stop Document Services, Director of the United States
Patent and Trademark Office, P.O. Box 1450, Alexandria, Virginia 22313-1450.
(e)
Certain documents relating to international
applications and registrations.
International applications under §
7.11, subsequent designations under § 7.21, responses to notices of irregularity
under § 7.14, requests to record changes in the International Register under §
7.23 and § 7.24, requests to note replacements under § 7.28, requests for
transformation under § 7.31 of this chapter, and petitions to the Director to
review an action of the Office's Madrid Processing Unit must be addressed to:
Madrid Processing Unit, 600 Dulany Street, Alexandria, VA 22314-5796.
I.
GENERAL MAILING ADDRESSES
The U.S. Patent and Trademark Office (Office) has three separate general
mailing addresses. The addresses are as follows:
A.
For Patent Applications and Patent-Related Papers
Correspondence in patent-related matters under the direction of the
Commissioner for Patents should be addressed to:
Commissioner for Patents
P.O. Box 1450
Alexandria, Virginia 22313-1450
Such correspondence includes: patent applications, replies to notices
of informality, requests for extension of time, notices of appeal to the Patent Trial
and Appeal Board (the Board), briefs in support of an appeal to the Board, requests
for oral hearing before the Board, applications for extensions of term of patent,
requests for reexamination, requests for supplemental examination, statutory
disclaimers, certificates of correction, petitions to the Commissioner for Patents,
submission of information disclosure statements, petitions to revive abandoned patent
applications, and other correspondence related to patent applications and patents
which is processed by organiz
cations for extensions of term of patent,
requests for reexamination, requests for supplemental examination, statutory
disclaimers, certificates of correction, petitions to the Commissioner for Patents,
submission of information disclosure statements, petitions to revive abandoned patent
applications, and other correspondence related to patent applications and patents
which is processed by organizations reporting to the Commissioner for Patents.
Certain patent-related correspondence requires immediate Office
attention. Examples are:
(A) Petitions for express abandonment to avoid publication under
37 CFR
1.138(c)
;
(B) Petitions to withdraw an application from issue under
37 CFR
1.313(c)
;
(C) Petitions to defer issuance of patent under
37 CFR
1.314
;
(D) Request for expedited examination of a design application
(rocket docket); and
(E) Certain papers required by the Office of Data Management.
Applicants are encouraged to transmit these types of correspondence
by the USPTO patent electronic filing system (see
MPEP § 502.05
).
Where permitted, patent-related correspondence that requires immediate Office
attention may also be submitted to the appropriate area of the Office for processing
by facsimile transmission (see
MPEP § 502.01
, subsections I.B and
II) or hand-carried (see
MPEP § 502
), subsection III).
B.
For Trademark Applications and Trademark-Related Papers
All trademark-related documents filed on paper, except documents sent
to the Assignment Recordation Branch for recordation; requests for copies of
trademark documents; and certain documents filed under the Madrid Protocol as
specified in 37 CFR 2.190(e), should be addressed to:
Commissioner for Trademarks
P.O. Box 1451
Alexandria, VA 22313-1451.
See 37 CFR 2.190 (reproduced before subsection I, above) for the
addresses for filing trademark correspondence with the USPTO on paper and
electronically.
C
ch for recordation; requests for copies of
trademark documents; and certain documents filed under the Madrid Protocol as
specified in 37 CFR 2.190(e), should be addressed to:
Commissioner for Trademarks
P.O. Box 1451
Alexandria, VA 22313-1451.
See 37 CFR 2.190 (reproduced before subsection I, above) for the
addresses for filing trademark correspondence with the USPTO on paper and
electronically.
C.
For Other Correspondence
Patent and trademark documents sent to the Assignment Recordation
Branch for recordation (Mail Stop Assignment Recordation Services), requests for
certified or uncertified copies of patent and trademark documents (Mail Stop Patent
and Trademark Copy Fulfillment Branch), and for correspondence for which an address
is not otherwise specified in
37 CFR 1.1
or 2.190, should be
addressed to:
Director of the United States Patent and Trademark
Office
P.O. Box 1450
Alexandria, VA 22313-1450
It is preferred that requests for certified or
uncertified copies of patent and trademark documents be made online through the
Certified Copy Center storefront at
www.uspto.gov/CertifiedCopyCenter
.
II.
SEPARATE MAILING ADDRESSES FOR CERTAIN CORRESPONDENCE
The Office has separate mailing addresses for certain
correspondence:
(A) Certain court-related correspondence (e.g., summons and complaint)
being delivered to the Office via the U.S. Postal Service (USPS) must be
addressed:
General Counsel
United States Patent and Trademark
Office
P.O. Box 1450
Alexandria, VA 22313-1450
(B) Correspondence directed to the Office of Enrollment and Discipline
(OED) Director relating to disciplinary proceedings pending before a Hearing
Officer or the Director must be addressed:
Mail Stop 8
Office of the Solicitor
United States Patent and Trademark
Office
P.O. Box 1450
Alexandria, Virginia 22313-1450
(C) Maintenance fee payments not electronically submitted over the
Internet and correspondence related to maintenance fees may be addressed to:
Mail Stop Maintenance Fee
Director of the United States Patent and Trademark
Office
P.O
g
Officer or the Director must be addressed:
Mail Stop 8
Office of the Solicitor
United States Patent and Trademark
Office
P.O. Box 1450
Alexandria, Virginia 22313-1450
(C) Maintenance fee payments not electronically submitted over the
Internet and correspondence related to maintenance fees may be addressed to:
Mail Stop Maintenance Fee
Director of the United States Patent and Trademark
Office
P.O. Box 1450
Alexandria, VA 22313-1450
(D) A payment to replenish a deposit account may be addressed to:
Mail Stop Deposit Accounts
Director of the United States Patent and Trademark
Office
P.O. Box 1450
Alexandria, VA 22313-1450
Persons filing correspondence with the Office should check the rules of
practice, the
Official Gazette,
or the USPTO website
(www.uspto.gov)
to determine the
appropriate mailing address for such correspondence.
III.
HAND-DELIVERY OF PAPERS
Patent-related papers may be hand-carried to the Office in Alexandria,
VA. Correspondence cannot be hand-carried to the Regional Offices. If the correspondence
is hand-carried to the Office, with limited exceptions (see
MPEP § 502
, subsection
III) it must be delivered to:
United States Patent and Trademark
Office
Customer Service Window
Knox Building
501 Dulany Street
Alexandria, VA 22314
Trademark-related papers may be filed at the “walk-up” window located in
the Trademark Assistance Center, Madison East, Concourse Level, Room C55, 600 Dulany
Street, Alexandria, VA 22314.
As provided in
37 CFR 1.4(c)
, matters that are to
be considered by different branches or sections of the USPTO must be contained in
separate papers. The following form paragraph may be used to notify the applicant of
this requirement when the applicant has filed a single paper containing distinct
subjects, inquiries, or orders.

## Nearby sections

- [MPEP § 501 Filing Papers With the U.S. Patent and Trademark Office](https://www.frixlaw.com/law-library/statutes/MPEP_S501.md)
- [MPEP § 502 Depositing Correspondence](https://www.frixlaw.com/law-library/statutes/MPEP_S502.md)
- [MPEP § 502.01 Correspondence Transmitted by Facsimile](https://www.frixlaw.com/law-library/statutes/MPEP_S502.01.md)
- [MPEP § 502.02 Correspondence Signature Requirements](https://www.frixlaw.com/law-library/statutes/MPEP_S502.02.md)
- [MPEP § 502.03 Communications via Internet Electronic Mail (email)](https://www.frixlaw.com/law-library/statutes/MPEP_S502.03.md)
- [MPEP § 502.04 Duplicate Copies of Correspondence](https://www.frixlaw.com/law-library/statutes/MPEP_S502.04.md)
- [MPEP § 502.05 Correspondence Transmitted by EFS-Web](https://www.frixlaw.com/law-library/statutes/MPEP_S502.05.md)
- [MPEP § 503 Application Number and Filing Receipt](https://www.frixlaw.com/law-library/statutes/MPEP_S503.md)
- [MPEP § 504 Assignment of Application for Examination](https://www.frixlaw.com/law-library/statutes/MPEP_S504.md)
- [MPEP § 505 Date of Receipt Stamp](https://www.frixlaw.com/law-library/statutes/MPEP_S505.md)
- [MPEP § 506 Completeness of Original Application](https://www.frixlaw.com/law-library/statutes/MPEP_S506.md)
- [MPEP § 506.01 [Reserved]](https://www.frixlaw.com/law-library/statutes/MPEP_S506.01.md)
- [MPEP § 506.02 Review of Refusal To Accord Filing Date](https://www.frixlaw.com/law-library/statutes/MPEP_S506.02.md)
- [MPEP § 507 Drawing Review in the Office of Patent Application Processing](https://www.frixlaw.com/law-library/statutes/MPEP_S507.md)

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Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/MPEP_S501. Check the current official text before relying on it. Not legal advice.