Patent Assignment
Reel/Frame 015936/0250
Assignment of Assignor's Interest
Recorded: 2004-10-27
Pages: 6
Assignors
MCCASKILL, JOHN WALTON
Executed: 2004-10-25
GOODIN, DAVID
Executed: 2004-10-25
GOODWIN, ROBERT
Executed: 2004-10-25
Assignee
POWER CHOKES, L.P., TEXAS LIMITED PARTNERSHIP
P.O. BOX 164, CYPRESS, TEXAS, 77410
Covered Property
(1)
Well pressure control system
Application:
10/974,355 →
Publication:
US 2005/0092523
Related Assignments
(4)
Other recorded transfers of the patent in this record — the chain of ownership.
Change of Name
Aug 17, 2005
From: POWER CHOKES, L.P.
To: POWER WELL SERVICES, L.P.
Reel/Frame 016408/0583 →
Amendment to Patent Security Agreement Supplement
Sep 1, 2005
From: POWER WELL SERVICES, L.P.
To: BANK OF AMERICA, N.A.
Reel/Frame 016480/0398 →
Release of Patent Security Agreement Supplement
Aug 8, 2006
From: BANK OF AMERICA, N.A.
To: POWER WELL SERVICES, L.P.
Reel/Frame 018061/0840 →
Articles and Certificate of Conversion
Apr 23, 2007
From: POWER WELL SERVICES, L.P.
To: EXPRO AMERICAS, L.P.
Reel/Frame 019215/0181 →