Office Action checkout

Owner

Wan Wei

Status date

Sep 21, 2026

Deadline

December 21, 2026

Status 641 means the USPTO mailed a non-final Office Action identifying issues with your application. You typically have three months to respond with arguments, amendments, or evidence. Missing the deadline can abandon the application.

The examiner has identified that you need to appoint a U.S.-licensed attorney to represent your application because your address is outside the United States.