Patent Assignment
Reel/Frame 006532/0859
Assignment of Assignor's Interest
Recorded: 1993-04-07
Pages: 3
Assignor
GIPSON, THOMAS C.
Executed: 1993-03-15
Assignee
FLEET CEMENTERS, INC.
P.O. BOX 231 I-20 EAST, CISCO, TEXAS, 76437
Covered Property
(1)
Method and Apparatus for Downhole Oil Well Production Stimulation
Patent:
5,297,631 →
Application:
08/044,187 →
Related Assignments
(10)
Other recorded transfers of the patent in this record — the chain of ownership.
Collateral Assignment and Security Agmt
Oct 30, 1996
From: FLEET CEMENTERS, INC.
To: AMERICAN BANK OF TEXAS, N.A.
Reel/Frame 008194/0766 →
Assignment of Assignor's Interest
Jul 2, 1999
From: FLEET CEMENTERS, INC.
To: PLAINS ENERGY SERVICES, LTD.
Reel/Frame 010061/0106 →
Assignment of Assignor's Interest
Aug 14, 2001
From: PLAINS ENERGY SERVICES LTD.
To: PRECISION DRILLING CORPORATION
Reel/Frame 012075/0872 →
Assignment of Assignor's Interest
Feb 19, 2004
From: PRECISION DRILLING CORPORATION
To: KEY ENERGY SERVICES, INC.
Reel/Frame 014357/0250 →
Security Agreement
Aug 22, 2005
From: KEY ENERGY SERVICES, INC.
To: LEHMAN COMMERCIAL PAPER INC., AS COLLATERAL AGENT
Reel/Frame 016427/0646 →
Release of Security Interest
Jan 7, 2008
From: LEHMAN COMMERCIAL PAPER, INC.
To: KEY ENERGY SERVICES, INC.
Reel/Frame 020325/0209 →
Security Agreement
Jan 7, 2008
From: KEY ENERGY SERVICES, INC
To: BANK OF AMERICA, NA
Reel/Frame 020317/0903 →
Assignment of Assignor's Interest
Jun 10, 2010
From: KEY ENERGY SERVICES, INC.
To: KEY ENERGY SERVICES, LLC
Reel/Frame 024505/0957 →
Security Agreement
Aug 30, 2010
From: KEY ENERGY SERVICES, LLC
To: BANK OF AMERICA, N.A.
Reel/Frame 024906/0588 →
Release of Security Interest
Apr 1, 2011
From: BANK OF AMERICA, N.A.
To: KEY ENERGY SERVICES, INC.
Reel/Frame 026064/0706 →