37 C.F.R. § 1.93 Specimens.
Title 37 - Patents, Trademarks, and Copyrights
When the invention relates to a composition of matter, the applicant may be required to furnish specimens of the composition, or of its ingredients or intermediates, for the purpose of inspection or experiment.
Title 37: Patents, Trademarks, and Copyrights
PART 1—RULES OF PRACTICE IN PATENT CASES
Subpart B—National Processing Provisions
Models, Exhibits, Specimens
§ 1.93 Specimens.
