Patent Assignment
Reel/Frame 004803/0242
Assignment of Assignors Interest.
Recorded: 1987-09-18
Pages: 2
Assignor
WILKINS, ROBERT L.
Executed: 1987-09-15
Covered Property
(1)
Wireline Downhole Annulus Valve
Patent:
4,807,700 →
Application:
07/098,377 →
Related Assignments
(4)
Other recorded transfers of the patent in this record — the chain of ownership.
To Correct Habitat of Assignee in a Previously Recorded Assignment Recorded at Reel 4803 Frames 242-243 Assignor Hereby Confirms the Entire Interest in Said Invention to Assignee (Negative Certificate Attached)
Jun 23, 1988
From: WILKINS, ROBERT L.
To: CAMERON IRON WORKS USA, INC., A CORP. OF DE
Reel/Frame 004903/0388 →
Assignment of Assignors Interest.
Feb 4, 1991
From: CAMERA IRON WORKS USA, INC., A CORP OF DE
To: COOPER INDUSTRIES, INC.
Reel/Frame 005587/0874 →
Assignment of Assignor's Interest
May 5, 1995
From: COOPER INDUSTRIES, INC.
To: COOPER CAMERON CORPORATION
Reel/Frame 007462/0622 →
Merger
May 5, 1995
From: CAMERON IRON WORKS USA, INC.
To: COOPER INDUSTRIES, INC.
Reel/Frame 007465/0201 →