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FLUID CIRCULATION IN ENERGY STORAGE AND RECOVERY SYSTEMS

13/234,239 | U.S. Patent Application

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Location ELECTRONIC
Filed Sept. 16, 2011
Examiner MICKEY H FRANCE
Class 060
Art Group 3746
Patent No. 8,677,744
Case Type Utility - 060/641200
Status Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362
Parent 61/384,814 Expired
Parent 61/494,473 Expired
Parent 12/966,773 Patented
Parent 12/690,513 Patented
Parent 61/145,860 Expired
Parent 61/145,864 Expired
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Last Updated: 2 years, 7 months ago
Date # Transaction