IP Library › Granted Patent US 6,681,852
Granted Patent Utility
US 6,681,852 · Confirmation No. 9838

TUBING HANGER SHUTTLE VALVE

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2017-03-03 OATH Oath or Declaration filed 11 View
2011-11-07 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2011-11-07 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2011-10-27 PA.. Power of Attorney 1 View
2011-10-27 R3.73 Assignee showing of ownership per 37 CFR 3.73 1 View
2011-10-27 N417 Electronic Filing System Acknowledgment Receipt 2 View
2003-12-05 IFEE Issue Fee Payment (PTO-85B) 1 View
2001-08-13 TRNA Transmittal of New Application 4 View
2001-08-13 DRW Drawings-only black and white line drawings 10 View
2001-01-29 TRNA Transmittal of New Application 3 View
2001-01-29 ADS Application Data Sheet 1 View
2001-01-29 SPEC Specification 11 View
2001-01-29 CLM Claims 4 View
2001-01-29 ABST Abstract 1 View
2001-01-29 DRW Drawings-only black and white line drawings 10 View
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Quick Facts
Patent No.
US 6,681,852
App. No.
09/774,287
Filed
2001-01-29
Granted
2004-01-27
Pub. No.
US20020029887A1
Art Unit
3672
PTA
-425 days