Patent Assignment
Reel/Frame 004281/0600
Assignment of Assignors Interest.
Recorded: 1984-07-16
Pages: 4
Assignee
WEATHERFORD U.S., INC.
A DE CORP., HOUSTON, TEXAS
Covered Property
(1)
Apparatus and Method for Inserting Flow Control Means into a Well Casing
Patent:
4,589,495 →
Application:
06/601,938 →
Related Assignments
(4)
Other recorded transfers of the patent in this record — the chain of ownership.
Security Interest
Aug 1, 1985
From: WEATHERFORD U.S. , INC.
To: FIRST CITY NATIONAL BANK OF HOUSTON, 1001 MAIN STREET, HOUSTON, TEXAS 77002, A NATIONAL BANKING ASSOCIATION OF TEXAS
Reel/Frame 004442/0268 →
Released by Secured Party
May 10, 1990
From: FIRST CITY, TEXAS-HOUSTON, N.A. (SUCESSOR TO FIRST CITY NATIONAL BANK OF HOUSTON N.A.)
To: WEATHERFORD U.S., INC.
Reel/Frame 005296/0388 →
Security Interest
Sep 7, 1993
From: WEATHERFORD U.S., INC.
To: TEXAS COMMERCE BANK NATIONAL ASSOICATION
Reel/Frame 006677/0420 →
Release from Security Agreement
Apr 26, 1994
From: TEXAS COMMERCE BANK NATIONAL ASSOCIATION
To: WEATHERFORD U.S., INC.
Reel/Frame 006968/0187 →