Patent Assignment
Reel/Frame 004035/0914
Assignment of Assignors Interest.
Recorded: 1982-09-16
Pages: 2
Assignor
TRUE, MARTIN E.
Executed: 1982-08-31
Assignee
WEATHERFORD/LAMB, INC., A CORP. OF TX
HOUSTON, TEXAS
Covered Property
(1)
Power Pipe Thread Cleaner
Patent:
4,433,448 →
Application:
06/419,119 →
Related Assignments
(4)
Other recorded transfers of the patent in this record — the chain of ownership.
Security Interest
Aug 1, 1985
From: WEATHERFORD/LAMB, INC., A CORP. OF TEXAS
To: FIRST CITY NATIONAL BANK OF HOUSTON, 1001 MAIN STREET, HOUSTON, TX 77002, A NATIONAL BANKING ASSOCIATION
Reel/Frame 004435/0255 →
Released by Secured Party
May 10, 1990
From: FIRST CITY, TEXAS-HOUSTON, N.A. (SUCCESSOR OF FIRST CITY NATIONAL BANK OF HOUSTON, NA)
To: WEATHERFORD/LAMB, INC.
Reel/Frame 005296/0501 →
Security Interest
Sep 7, 1993
From: WEATHERFORD/LAMB, INC.
To: TEXAS COMMERCE BANK NATIONAL ASSOCIATION
Reel/Frame 006683/0516 →
Release
Apr 26, 1994
From: TEXAS COMMERCE BANK NATIONAL ASSOCIATION
To: WEATHERFORD/LAMB, INC.
Reel/Frame 006968/0274 →