Code of Federal Regulations · Section

§ 3863.1-2 — -2 Proof Of Improvements For Patent

43 C.F.R. § 3863.1-2

View:

The proof of improvements must show their value to be not less than $500 and that they were made by the applicant for patent or his grantors. This proof should consist of the statement of two or more disinterested witnesses.