Patent Assignment
Reel/Frame 004936/0793
Assignment of Assignors Interest.
Recorded: 1988-08-02
Pages: 1
Assignor
ANDERS, EDWARD O.
Executed: 1988-04-15
Covered Property
(1)
Method and System for Maintaining and Produuction Horizontal Well Bores
Patent:
4,878,539 →
Application:
07/227,197 →
Related Assignments
(5)
Other recorded transfers of the patent in this record — the chain of ownership.
Security Interest
Feb 18, 1992
From: DAILEY PETROLEUM SERVICES CORP., A DE CORP.
To: FIRST INTERSTATE BANK OF TEXAS, N.A.
Reel/Frame 006036/0516 →
Merger Effective on 04/26/1989DE
Jul 31, 1992
From: ANDERS ENERGY CORPORATION, A DE CORP.
To: LAWRENCE PETROLEUM SERVICES, INC. A CORPORATION OF DELAWARE
Reel/Frame 006236/0338 →
Assignment of Assignors Interest.
Jul 31, 1992
From: LAWRENCE PETROLEUM SERVICES, INC.
To: DAILEY PETROLEUM SERVICES CORP.
Reel/Frame 006236/0346 →
Security Agreement
Feb 9, 1998
From: DAILEY PETROLEUM SERVICES, CORP. (DEBTOR); WELLS FARGO BANK (TEXAS), N.A.
To: WELLS FARGO BANK (TEXAS), N.A.
Reel/Frame 008943/0314 →
Assignment of Assignor's Interest
Jul 18, 2000
From: DAILEY INTERNATIONAL, INC.
To: WEATHERFORD U.S. L.P.
Reel/Frame 010977/0150 →