Download Docs
Export
Print

FORMING A WELLBORE CASING WHILE SIMULTANEOUSLY DRILLING A WELLBORE

09/962,469 | U.S. Patent Application

Interested in this case?

To schedule a demo, contact us at sales@docketalarm.com. Track this case, and find millions of cases like it, let us show you how.
Location RECORD ROOM 703-756-1800
Filed Sept. 25, 2001
Examiner DANIEL P STEPHENSON
Class 166
Art Group 3672
Patent No. 6,892,819
Case Type Utility - 166/380000
Status Patented Case
Parent 09/523,468 Patented
Parent 09/510,913 Patented
Parent 09/502,350 Patented
Parent 60/119,611 Expired
Parent 09/454,139 Patented
Parent 60/111,293 Expired
Show All
Last Updated: 6 years, 7 months ago
Date # Transaction