Can acts performed in non-NAFTA/WTO countries be used in a 37 CFR 1.131 affidavit?

Source: FAQ (MPEP-Based)BlueIron Update: 2024-09-10

This page is an FAQ based on guidance from the Manual of Patent Examining Procedure. It is provided as guidance, with links to the ground truth sources. This is information only: it is not legal advice.

No, acts performed in non-NAFTA/WTO countries cannot be used in a 37 CFR 1.131 affidavit. The MPEP 715.07(c) clearly states:

“The provisions of 35 U.S.C. 104 and 37 CFR 1.131(a) specifically refer to acts which occurred in a NAFTA or WTO member country. These provisions do not apply to acts occurring in a non-NAFTA or non-WTO member country.”

This means that inventors can only rely on acts that occurred in the United States, a NAFTA country, or a WTO member country when submitting an affidavit or declaration under 37 CFR 1.131. Acts performed in other countries cannot be used to establish a date of invention for the purpose of overcoming a prior art reference.

Tags: 37 Cfr 1131, affidavit, Non Nafta Countries, Non Wto Countries, patent examination