Patent Assignment
Reel/Frame 003905/0951
Assignment of Assignors Interest.
Recorded: 1981-08-03
Pages: 2
Assignor
SHINN, TERRY L.
Executed: 1981-07-31
Assignee
SMITH INTERNATIONAL, INC.
A CORP.OF CA, HOUSTON, TEXAS
Covered Property
(1)
High-Pressure Wellhead Seal
Patent:
4,455,040 →
Application:
06/289,285 →
Related Assignments
(4)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignors Interest.
Feb 22, 1988
From: SMITH INTERNATIONAL, INC.
To: CAMERON IRON WORKS USA INC.
Reel/Frame 004833/0129 →
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: SMITH INTERNATIONAL, INC.
To: COOPER INDUSTRIES, INC.
Reel/Frame 007462/0554 →
Assignment of Assignor's Interest
May 5, 1995
From: COOPER INDUSTRIES, INC.
To: COOPER CAMERON CORPORATION
Reel/Frame 007462/0622 →