Patent Assignment
Reel/Frame 012075/0927
Assignment of Assignor's Interest
Recorded: 2001-08-14
Pages: 4
Assignor
PLAINS ENERGY SERVICES LTD.
Executed: 2001-06-29
Assignee
PRECISION DRILLING CORPORATION
#4200, 150-6TH AVENUE S.W., CALGARY AB, T2P 3, CANADA
Covered Property
(1)
Method and System for Downhole Redirection of a Borehole
Patent:
5,439,066 →
Application:
08/266,011 →
Related Assignments
(8)
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
Feb 19, 2004
From: PRECISION DRILLING CORPORATION
To: KEY ENERGY SERVICES, INC.
Reel/Frame 014357/0254 →
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 →