IP Library › Granted Patent US 6,722,428
Granted Patent Utility
US 6,722,428 · Confirmation No. 9767

APPARATUS FOR SUSPENDING A PIPE WITHIN A WELL CASING

Inventor: John N. Yokley
Patented Case View Patent ↗ View Publication ↗
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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
2004-03-01 IFEE Issue Fee Payment (PTO-85B) 2 View
2002-05-16 TRNA Transmittal of New Application 5 View
2002-05-16 SPEC Specification 9 View
2002-05-16 CLM Claims 2 View
2002-05-16 ABST Abstract 1 View
2002-05-16 DRW Drawings-only black and white line drawings 13 View
2002-05-16 OATH Oath or Declaration filed 3 View
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Quick Facts
Patent No.
US 6,722,428
App. No.
10/146,785
Filed
2002-05-16
Granted
2004-04-20
Pub. No.
US20020170709A1
Art Unit
3672
PTA
0 days