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Earth Electromotive Force Generation Method and Apparatus

12/618,506 | U.S. Patent Application

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Filed Nov. 13, 2009
Examiner Brian R Slawski
Class 429
Art Group 1745
Patent No. 8,357,461
Case Type Utility
Status Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362
Last Updated: 2 weeks, 1 day ago
Date # Transaction