Office Action checkout
ART-C
Serial No. 99821891
- Owner
- MOMENTA
- Status date
- Sep 17, 2026
- Deadline
- December 17, 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 need to address a likelihood of confusion refusal regarding an existing registered trademark.
USPTO record
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Serial 99821891. Checking the latest USPTO record. This usually takes a few seconds.
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