37 CFR 1.437 - The drawings.

Regulations last checked for updates: Feb 09, 2026

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

§ 1.437 - The drawings.

(a) Drawings are required when they are necessary for the understanding of the invention (PCT Art. 7).

(b) The physical requirements for drawings are set forth in PCT Rule 11 and shall be adhered to.

[72 FR 51563, Sept. 10, 2007]

authority: 35 U.S.C. 2(b)(2), unless otherwise noted

source: 24 FR 10332, Dec. 22, 1959, unless otherwise noted.

cite as: 37 CFR 1.437