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MONO-DIAMETER WELLBORE CASING

10/491,709 | U.S. Patent Application

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Location ELECTRONIC
Filed April 2, 2004
Examiner ZAKIYA W BATES
Class 166
Art Group 3674
Patent No. 7,234,531
Case Type Utility - 166/384000
Status Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362
Parent PCT/US02/29856 Published
Parent 60/326,886 Expired
Parent 09/852,026 Patented
Parent 60/262,434 Expired
Parent 09/454,139 Patented
Parent 60/111,293 Expired
Last Updated: 6 years, 2 months ago
Date # Transaction