Firearm upper receiver
Claims
The ornamental design for a firearm upper receiver, as shown and described.
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Type: Grant
Filed: Apr 16, 2013
Date of Patent: Sep 16, 2014
Inventors: Lee Firpo, I (Jacksonville, FL), Darin Phipps (Jacksonville, FL), Michael Phipps (Reseda, CA)
Primary Examiner: Michael A Pratt
Application Number: 29/452,401