Office Action checkout

Owner

Chen Peiyuan

Status date

Oct 30, 2026

Deadline

January 30, 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 examiner requires you to appoint a qualified U.S.-licensed attorney because your domicile is outside the United States and your previous attorney is no longer authorized to represent you.