37 CFR 2.191 - Action of the Office based on the written record.

Regulations last checked for updates: Feb 07, 2026

Title 37 - Patents, Trademarks, and Copyrights last revised: Jan 01, 2026

View all text of Part 2 [§ 2.1 - § 2.209]

§ 2.191 - Action of the Office based on the written record.

All business with the Office must be transacted in writing. The action of the Office will be based exclusively on the written record. No consideration will be given to any alleged oral promise, stipulation, or understanding when there is disagreement or doubt.

[84 FR 37096, July 31, 2019]

authority: 15 U.S.C. 1113,1123; 35 U.S.C. 2; sec. 10, Pub. L. 112-29, 125 Stat. 284; Pub. L. 116-260, 134 Stat. 1182, unless otherwise noted. Sec. 2.99 also issued under secs. 16, 17, 60 Stat. 434; 15 U.S.C. 1066,1067

source: 30 FR 13193, Oct. 16, 1965, unless otherwise noted.

cite as: 37 CFR 2.191