Office Action checkout

Owner

NanoPro llc

Status date

Sep 29, 2026

Deadline

December 29, 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 trademark examiner has refused registration because of a potential likelihood of confusion with existing registered marks and because the submitted specimen is considered advertising material rather than proper trademark use.