IP Library › Granted Patent US 4,825,945
Granted Patent Utility
US 4,825,945 · App. 07/170,878

Wellhead valve

Inventor: Jerry D. Smith
Patented Case View Patent ↗
Granted: May 2, 1989 Filed: Mar 21, 1988
Inventor
Jerry D. Smith
Assignee (at issue)
Cameron Iron Works USA, Inc.

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Quick Facts
Patent No.
US 4,825,945
App. No.
07/170,878
Filed
1988-03-21
Granted
1989-05-02
Kind
A