US Patent 8667883 Firearm having gas piston system
Patent 8667883 was granted and assigned to Rock River Arms on March, 2014 by the United States Patent and Trademark Office.
Is a
Current Assignee
Date Filed
June 19, 2013
Date of Patent
March 11, 2014
Patent Applicant
Patent Application Number
13921917
Patent Jurisdiction
Patent Number
Patent Primary Examiner
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