Office Action checkout

Owner

Chen ZhiPeng

Status date

Sep 8, 2026

Deadline

December 8, 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 requires you to appoint a U.S.-licensed attorney because your domicile is outside the United States, and has deferred the review of your application while conducting an administrative review of previous submissions.