Patent Assignment
Reel/Frame 003956/0340
Assignment of Assignors Interest.
Recorded: 1982-03-12
Pages: 2
Assignor
LINDSEY, HIRAM E. JR.
Executed: 1981-05-14
Assignee
MWL TOOL AND SUPPLY COMPANY, A CORP. OF TX.
MIDLAND, TEXAS
Covered Property
(1)
Setting Tool and Retrievable Landing Assembly
Patent:
4,497,371 →
Application:
06/274,170 →
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.
Change of Name
Dec 3, 1993
From: LINDSEY COMPLETION SYSTEMS, INC.
To: MASX ENERGY SERVICES GROUP, INC.
Reel/Frame 006783/0444 →
Assignment of Assignor's Interest
Jan 12, 1994
From: MASX ENERGY SERVICES GROUP, INC. (A DELAWARE CORPORATION)
To: SMITH INTERNATIONAL, INC. (A DELAWARE CORPORATION)
Reel/Frame 006822/0975 →