Patent Assignment
Reel/Frame 005829/0658
Change of Name Effective on 06/13/1989
Recorded: 1991-09-16
Pages: 4
Assignor
COMPUTALOG GEARHART LTD.
Executed: 1989-05-26
Assignee
Covered Properties
(2)
Universal Joint Arrangement for Downhole Tools
Patent:
5,078,650 →
Application:
07/508,973 →
Compressive Seal and Pressure Control Arrangements for Downhole Tools
Patent:
5,067,874 →
Application:
07/508,974 →
Related Assignments
(5)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignors Interest.
Apr 13, 1990
From: FOOTE, DEAN
To: COMPUTALOG LTD.
Reel/Frame 005282/0790 →
Assignment of Assignors Interest.
Apr 13, 1990
From: FOOTE, DEAN
To: COMPUTALOG LTD.
Reel/Frame 005282/0791 →
Change of Name
Jul 1, 2005
From: COMPUTALOG LTD.
To: PRECISION DRILLING TECHNOLOGY SERVICES GROUP, INC.
Reel/Frame 017275/0188 →
Change of Name
Aug 3, 2005
From: PRECISION DRILLING TECHNOLOGY SERVICES GROUP, INC.
To: PRECISION ENERGY SERVICES, LTD.
Reel/Frame 016345/0078 →
Change of Name
Feb 7, 2006
From: COMPUTALOG LTD.
To: PRECISION DRILLING TECHNOLOGY SERVICES GROUP, INC.
Reel/Frame 017230/0980 →