Office Action checkout

Owner

SATO BIO USA LLC

Status date

Nov 4, 2026

Deadline

February 4, 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 refused registration because your mark is considered confusingly similar to an existing registration and is also primarily merely a surname.