Patent Assignment
Reel/Frame 004192/0113
Assignment of Assignors Interest.
Recorded: 1983-11-04
Pages: 1
Assignor
LAZARUS, KENNETH W.
Executed: 1983-10-24
Assignee
WELLHEAD SYSTEMS, INC., A CORP OF LA
1500 N. MARKET STREET, SUITE A-100, SHREVEPORT, LOUISIANA, 71107
Covered Property
(1)
Plug Mechanism for Wellhead Tool
Patent:
4,503,879 →
Application:
06/548,606 →
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 →