IP Library Granted Patent US 6,571,868
Granted Patent Utility
US 6,571,868 · Confirmation No. 1556

WELL HEAD LUBRICATOR ASSEMBLY WITH POLYURETHANE IMPACT-ABSORBING SPRING

Inventor: Bruce M. Victor
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Code Description Pages PDF
2015-11-10 C.AD Change of Address 2 View
2015-11-10 R3.73 Assignee showing of ownership per 37 CFR 3.73 2 View
2015-11-10 N417 Electronic Filing System Acknowledgment Receipt 2 View
2006-10-06 OATH Oath or Declaration filed 1 View
2006-10-06 N417 Electronic Filing System Acknowledgment Receipt 2 View
2006-10-06 PA.. Power of Attorney 1 View
2006-10-06 N417 Electronic Filing System Acknowledgment Receipt 2 View
2001-08-30 TRNA Transmittal of New Application 2 View
2001-08-30 SPEC Specification 7 View
2001-08-30 CLM Claims 3 View
2001-08-30 ABST Abstract 1 View
2001-08-30 DRW Drawings-only black and white line drawings 2 View
2001-08-30 OATH Oath or Declaration filed 2 View
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Quick Facts
Patent No.
US 6,571,868
App. No.
09/944,473
Filed
2001-08-30
Granted
2003-06-03
Pub. No.
US20020029878A1
Examiner
TSAY, FRANK
Art Unit
3672
PTA
-72 days