# 37 C.F.R. § 1.2 (2026): Business to be transacted in writing

> Federal · Regulations · In force

URL: https://www.frixlaw.com/law-library/statutes/CFR_T37_P1_S1_2

## Section

- **Citation:** 37 C.F.R. § 1.2 (2026)
- **Heading:** Business to be transacted in writing
- **Jurisdiction:** Federal
- **Kind:** Regulations
- **Status:** In force
- **Text as of:** August 14, 2026
- **Source:** Compiled text
- **Location:** Title 37 CFR: Patents, Trademarks, and Copyrights / Chapter I: UNITED STATES PATENT AND TRADEMARK OFFICE, DEPARTMENT OF COMMERCE / Part 1: RULES OF PRACTICE IN PATENT CASES / Subpart A: General Provisions / § 1.2: § 1.2   Business to be transacted in writing.

## Text

All business with the Patent and Trademark Office should be transacted in writing. The personal attendance of applicants or their attorneys or agents at the Patent and Trademark Office is unnecessary. The action of the Patent and Trademark Office will be based exclusively on the written record in the Office. No attention will be paid to any alleged oral promise, stipulation, or understanding in relation to which there is disagreement or doubt.

## Nearby sections

- [37 C.F.R. § 1.1 (2026) § 1.1   Addresses for non-trademark correspondence with the United States Patent and Trademark Office.](https://www.frixlaw.com/law-library/statutes/CFR_T37_P1_S1_1.md)
- [37 C.F.R. § 1.2 (2026) § 1.2   Business to be transacted in writing.](https://www.frixlaw.com/law-library/statutes/CFR_T37_P1_S1_2.md)
- [37 C.F.R. § 1.3 (2026) § 1.3   Business to be conducted with decorum and courtesy.](https://www.frixlaw.com/law-library/statutes/CFR_T37_P1_S1_3.md)
- [37 C.F.R. § 1.4 (2026) § 1.4   Nature of correspondence and signature requirements.](https://www.frixlaw.com/law-library/statutes/CFR_T37_P1_S1_4.md)
- [37 C.F.R. § 1.5 (2026) § 1.5   Identification of patent, patent application, or patent-related proceeding.](https://www.frixlaw.com/law-library/statutes/CFR_T37_P1_S1_5.md)
- [37 C.F.R. § 1.6 (2026) § 1.6   Receipt of correspondence.](https://www.frixlaw.com/law-library/statutes/CFR_T37_P1_S1_6.md)
- [37 C.F.R. § 1.7 (2026) § 1.7   Times for taking action; Expiration on Saturday, Sunday or Federal holiday.](https://www.frixlaw.com/law-library/statutes/CFR_T37_P1_S1_7.md)
- [37 C.F.R. § 1.8 (2026) § 1.8   Certificate of mailing or transmission.](https://www.frixlaw.com/law-library/statutes/CFR_T37_P1_S1_8.md)
- [37 C.F.R. § 1.9 (2026) § 1.9   Definitions.](https://www.frixlaw.com/law-library/statutes/CFR_T37_P1_S1_9.md)
- [37 C.F.R. § 1.10 (2026) § 1.10   Filing of correspondence by Priority Mail Express®.](https://www.frixlaw.com/law-library/statutes/CFR_T37_P1_S1_10.md)
- [37 C.F.R. § 1.11 (2026) § 1.11   Files open to the public.](https://www.frixlaw.com/law-library/statutes/CFR_T37_P1_S1_11.md)
- [37 C.F.R. § 1.12 (2026) § 1.12   Assignment records open to public inspection.](https://www.frixlaw.com/law-library/statutes/CFR_T37_P1_S1_12.md)
- [37 C.F.R. § 1.13 (2026) § 1.13   Copies and certified copies.](https://www.frixlaw.com/law-library/statutes/CFR_T37_P1_S1_13.md)
- [37 C.F.R. § 1.14 (2026) § 1.14   Patent applications preserved in confidence.](https://www.frixlaw.com/law-library/statutes/CFR_T37_P1_S1_14.md)

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Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/CFR_T37_P1_S1_2. Check the current official text before relying on it. Not legal advice.