35 USCS Sect. 114

U.S. Patent Act

..Part II. Patentabililty of Inventions and Grant of Patents

....Chapt. 11. Application for Patent


Sect. 114. Models, specimens

The Commissioner may require the applicant to furnish a model of convenient size to exhibit advantageously the several parts of his invention.

When the invention relates to a composition of matter, the Commissioner may require the applicant to furnish specimens or ingredients for the purpose of inspection or experiment.