US Patent 10648340 High modulus hybrid material rotor blade spar
Patent 10648340 was granted and assigned to Sikorsky Aircraft on May, 2020 by the United States Patent and Trademark Office.
Is a
Current Assignee
Date Filed
August 7, 2014
Date of Patent
May 12, 2020
Patent Applicant
Patent Application Number
14915162
Patent Jurisdiction
Patent Number
Patent Primary Examiner
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