Revocation of Power of Attorney

Revocation of a power of attorney becomes effective on the

date that the revocation is RECEIVED in the Office (not on the date of ACCEPTANCE). Upon

revocation of the power of attorney, appropriate notification is sent by the Office.

While an application is involved in an interference or derivation proceeding, any power

of attorney or revocation of power of attorney should be forwarded to the Patent Trial

and Appeal Board for consideration. See

MPEP § 402.08

.

See

MPEP § 402.05(a)

for applicant

revocation of powers of attorney in applications filed on or after September 16, 2012.

See

MPEP §

402.05(b)

for applicant revocation of powers of attorney in

applications filed before September 16, 2012. See

MPEP § 402.07

for assignee revocation

of a power of attorney.

All of the Office’s power of attorney forms include

revocation language on them and will revoke any existing power of attorney.