Office Action checkout

Owner

Yu Chen

Status date

Oct 15, 2026

Deadline

January 15, 2027

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 USPTO examiner requires you to appoint a U.S.-licensed attorney to represent your application because your domicile is outside the United States.