Office Action checkout

Owner

CHANG HON TAT

Status date

Sep 9, 2026

Deadline

December 9, 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 are required to have a U.S.-licensed attorney represent you and that your application is undergoing an administrative review where refiling is suggested.