IP Library › Granted Patent US 6,698,513
Granted Patent Utility
US 6,698,513 · Confirmation No. 9652

APPARATUS FOR USE IN CEMENTING AN INNER PIPE WITHIN AN OUTER PIPE WITHIN A WELLBORE

Inventor: John M. Yokley
Patented Case View Patent ↗
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 Code Description Pages PDF
2014-04-01 MFEE.C.AD Maintenance Fee Address Change 1 View
2014-04-01 R3.73 Assignee showing of ownership per 37 CFR 3.73 1 View
2014-04-01 N417 Electronic Filing System Acknowledgment Receipt 2 View
2004-01-20 IFEE Issue Fee Payment (PTO-85B) 2 View
2002-05-02 TRNA Transmittal of New Application 4 View
2002-05-02 SPEC Specification 6 View
2002-05-02 CLM Claims 1 View
2002-05-02 ABST Abstract 1 View
2002-05-02 DRW Drawings-only black and white line drawings 5 View
2002-05-02 OATH Oath or Declaration filed 3 View
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Quick Facts
Patent No.
US 6,698,513
App. No.
10/136,992
Filed
2002-05-02
Granted
2004-03-02
Art Unit
3672
PTA
-3 days