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DIAL-TYPE FLOW-RESTRICTION GAUGES

12/425,761 | U.S. Patent Application

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Location ELECTRONIC
Filed April 17, 2009
Examiner ANDRE J ALLEN
Class 073
Art Group 2855
Patent No. 7,921,720
Case Type Utility - 073/700000
Status Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362
Parent 11/764,747 Patented
Parent 60/814,233 Expired
Last Updated: 1 year, 12 months ago
Date # Transaction