IP Library › Granted Patent US 6,666,637
Granted Patent Utility
US 6,666,637 · Confirmation No. 1140

SEGMENTED RING-NUT FOR GASKETED PRESSURE VESSEL OPENING

Inventor: Nansheng Sun
Patented Case View Patent ↗
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 Code Description Pages PDF
2015-05-21 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2015-05-21 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2015-05-08 PA.. Power of Attorney 1 View
2015-05-08 R3.73 Assignee showing of ownership per 37 CFR 3.73 1 View
2015-05-08 N417 Electronic Filing System Acknowledgment Receipt 2 View
2003-09-30 IFEE Issue Fee Payment (PTO-85B) 1 View
2003-09-26 LET. Miscellaneous Incoming Letter 2 View
2003-09-26 DRW Drawings-only black and white line drawings 5 View
2002-12-02 TRNA Transmittal of New Application 2 View
2002-12-02 SPEC Specification 7 View
2002-12-02 CLM Claims 2 View
2002-12-02 ABST Abstract 1 View
2002-12-02 DRW Drawings-only black and white line drawings 4 View
2002-12-02 OATH Oath or Declaration filed 1 View
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Quick Facts
Patent No.
US 6,666,637
App. No.
10/307,756
Filed
2002-12-02
Granted
2003-12-23
Art Unit
3679
PTA
0 days