IP Library › Assignment 004092/0800
Patent Assignment
Reel/Frame 004092/0800

Assignment of Assignors Interest.

Recorded: 1983-02-03 Pages: 2
Assignor
PRINGLE, RONALD E.
Executed: 1983-01-21
Assignee
Covered Property (1)
Deep Set Piston Actuated Well Safety Valve
Patent: 4,444,266 →
Application: 06/463,462 →
Related Assignments (1)
Other recorded transfers of the patent in this record — the chain of ownership.
Merger Jul 9, 1990
From: CAMCO, INCORPORATED, A CORP. OF TX.
To: CAMCO INTERNATIONAL INC., A CORP. OF DE
Reel/Frame 005366/0664 →