Patent Assignment
Reel/Frame 004097/0864
Assignment of Assignors Interest.
Recorded: 1982-11-04
Pages: 1
Assignor
KNIGHT, JOHN W.
Executed: 1982-10-28
Assignee
W-K-M WELLHEAD SYSTEMS, INC.; A CORP OF LA.
1500 N. MARKET ST., SUITE A-100,, SHREVEPORT,, LOUISIANA, 71197
Covered Property
(1)
Wellhead Valve Removal and Installation Tool
Patent:
4,460,039 →
Application:
06/439,082 →
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignors Interest.
Jun 22, 1984
From: ACF INDUSTRIES, INCORPORATED A NEW JERSEY CORP
To: JOY MANUFACTURING COMPANY
Reel/Frame 004280/0243 →
Assignment of Assignors Interest.
Jul 19, 1984
From: W-K-M WELLHEAD SYSTEMS, INC.
To: ACF INDUSTRIES, INCORPORATED
Reel/Frame 004284/0238 →
Assignment of Assignor's Interest
May 5, 1995
From: COOPER INDUSTRIES, INC.
To: COOPER CAMERON CORPORATION
Reel/Frame 007462/0622 →