StacksVerified U.S. regulatory reference

37 CFR §1.437

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
  1. (a)Drawings are required when they are necessary for the understanding of the invention (PCT Art. 7).
  2. (b)The physical requirements for drawings are set forth in PCT Rule 11 and shall be adhered to.