Patent Assignment
Reel/Frame 006016/0140
Security Interest
Recorded: 1992-02-18
Pages: 4
Assignor
DAILEY PETROLEUM SERVICES CORP. A CORP. OF DELAWARE
Executed: 1992-02-13
Assignee
Covered Property
(1)
Double-Acting Accelerator for Use with Hydraulic Drilling Jars
Patent:
5,232,060 →
Application:
07/745,416 →
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
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 →