Patent Assignment
Reel/Frame 008559/0528
Assignment of Assignor's Interest
Recorded: 1997-06-16
Pages: 2
Assignor
EVANS, ROBERT W.
Executed: 1997-05-30
Assignee
DAILEY PETROLEUM SERVICES CORPORATION
2507 N FRAZIER, CONROE, TEXAS, 77303
Covered Property
(1)
Reduced Waiting Time Hydraulic Drilling Jar
Patent:
5,318,139 →
Application:
08/054,718 →
Related Assignments
(4)
Other recorded transfers of the patent in this record — the chain of ownership.
Second Amended Notice of Security Interest
Jan 16, 1996
From: DAILEY PETROLEUM SERVICES CORPORATION
To: FIRST INTERSTATE BANK OF TEXAS, N.A.
Reel/Frame 007786/0289 →
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 →