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CASED HOLE PERFORATING ALTERNATIVE

11/7,400 | U.S. Patent Application

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Filed Dec. 8, 2004
Examiner FULLER, ROBERT EDWARD
Class 166
Art Group 3676
Patent No. 7,520,335
Case Type Utility
Status Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362
Last Updated: 1 week, 5 days ago
Date # Transaction