Patent Assignment
Reel/Frame 005088/0257
Assignment of Assignors Interest.
Recorded: 1989-06-07
Pages: 1
Assignors
ADAMS, JOHN R.
Executed: 1989-04-21
PRICE, PATRICK S.
Executed: 1989-04-21
SMITH, JIM W.
Executed: 1989-04-21
Covered Property
(1)
Inertial Based Pipeline Monitoring System
Patent:
4,945,775 →
Application:
07/362,504 →
Related Assignments
(9)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Mar 31, 1994
From: PULSEARCH CONSOLIDATED TECHNOLOGY LTD
To: NOWSCO WELL SERVICE LTD
Reel/Frame 006918/0591 →
Certificate of Amalgamation
Feb 12, 2002
From: NOWSCO WELL SERVICE LTD.
To: BJ SERVICES CANADA INC.
Reel/Frame 012621/0369 →
Change of Name
Feb 12, 2002
From: NOWSCO-FRACMASTER COMPANY
To: BJ SERVICES COMPANY CANADA
Reel/Frame 012621/0383 →
Assignment of Assignor's Interest
Feb 12, 2002
From: BJ SERVICES COMPANY CANADA
To: BJ SERVICES COMPANY
Reel/Frame 012621/0390 →
Change of Name
Feb 12, 2002
From: BJ SERVICES CANADA INC.
To: NOWSCO WELL SERVICE LTD.
Reel/Frame 012621/0365 →
Assignment of Assignor's Interest
Feb 12, 2002
From: NOWSCO WELL SERVICE LTD.
To: NOWSCO-FRACMASTER LTD.
Reel/Frame 012621/0523 →
Assignment of Assignor's Interest
Feb 12, 2002
From: NOWSCO-FRACMASTER LTD.
To: NOWSCO-FRACMASTER LTD.
Reel/Frame 012621/0538 →
Certificate of Amalgamation
Feb 12, 2002
From: NOWSCO-FRACMASTER LTD.
To: NOWSCO-FRACMASTER COMPANY
Reel/Frame 012621/0394 →
Assignment of Assignor's Interest
Mar 8, 2002
From: NOWSCO-FRACMASTER LTD.
To: NOWSCO-FRACMASTER LTD.
Reel/Frame 012691/0561 →