Patent Assignment
Reel/Frame 004544/0230
Assignment of Assignors Interest.
Recorded: 1986-05-09
Pages: 1
Assignor
EVANS, ROBERT W.
Executed: 1986-03-20
Assignee
DAILEY PETROLEUM SERVICES CORP. A CORP. OF DE.
ONE LAWRENCE CENTRE, CONROE, TEXAS
Covered Property
(1)
Single Acting Hydraulic Fishing Jar
Patent:
4,566,546 →
Application:
06/648,711 →
Related Assignments
(6)
Other recorded transfers of the patent in this record — the chain of ownership.
Merger Effective Date: December 22, 1981, State of Incorp., Delaware, Effective Dec. 31, 1981
Jul 15, 1985
From: BROWN OIL TOOLS, INC.
To: HUGHES TOOL COMPANY
Reel/Frame 004430/0088 →
Assignment of Assignors Interest.
Jul 15, 1985
From: HUGHES TOOL COMPANY
To: EVANS, ROBERT W., A CITIZEN OF THE UNITED STATES OF AMERICA
Reel/Frame 004430/0097 →
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 →
Assignment of Assignor's Interest
Jul 22, 1996
From: DAILEY PETROLEUM SERVICES CORP.
To: DAILEY PETROLEUM SERVICES CORP.
Reel/Frame 008040/0824 →
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 →