IP Library › Granted Patent US 6,543,472
Granted Patent Utility
US 6,543,472 · Confirmation No. 9486

PRESSURE REGULATOR VALVE

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2020-03-18 SES.LOSS.ELC Notification of loss of entitlement to small entity status via Patent Application Information Retrieval (PAIR) 1 View
2018-12-13 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2018-12-13 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2018-12-11 N417 Electronic Filing System Acknowledgment Receipt 2 View
2018-12-11 PA.. Power of Attorney 2 View
2018-12-11 R3.73 Assignee showing of ownership per 37 CFR 3.73 1 View
2010-04-27 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2010-04-27 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2001-10-01 TRNA Transmittal of New Application 2 View
2001-10-01 DRW Drawings-only black and white line drawings 4 View
2001-06-29 TRNA Transmittal of New Application 1 View
2001-06-29 SPEC Specification 9 View
2001-06-29 CLM Claims 2 View
2001-06-29 ABST Abstract 1 View
2001-06-29 DRW Drawings-only black and white line drawings 8 View
2001-06-29 OATH Oath or Declaration filed 3 View
2001-06-29 LET. Miscellaneous Incoming Letter 1 View
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Quick Facts
Patent No.
US 6,543,472
App. No.
09/895,164
Filed
2001-06-29
Granted
2003-04-08
Pub. No.
US20030001127A1
Art Unit
3754
PTA
-57 days