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RETRACTABLE COMPOSITE ROTOR BLADE ASSEMBLY

12/582,889 | U.S. Patent Application

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Filed Oct. 21, 2009
Examiner Ninh H Nguyen
Class 416
Art Group 3745
Patent No. 8,459,948
Case Type Utility
Status Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362
Last Updated: 1 week ago
Date # Transaction