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METHOD OF FORMING A SPARK PLUG

13/746,819 | U.S. Patent Application

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Filed Jan. 22, 2013
Examiner Tracie Y Green
Class 445
Art Group 2875
Patent No. 8,747,176
Case Type Utility
Status Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362
Last Updated: 2 weeks ago
Date # Transaction