Patent Assignment
Reel/Frame 012621/0523
Assignment of Assignor's Interest
Recorded: 2002-02-12
Pages: 6
Assignor
NOWSCO WELL SERVICE LTD.
Executed: 1999-07-06
Assignee
NOWSCO-FRACMASTER LTD.
5500 NORTHWEST CENTRAL DRIVE, HOUSTON, TEXAS, 77092
Covered Properties
(3)
Inertial Based Pipeline Monitoring System
Patent:
4,945,775 →
Application:
07/362,504 →
Safeguarded Method and Apparatus for Fluid Communiction Using Coiled Tubing, with Application to Drill Stem Testing
Patent:
5,638,904 →
Application:
08/564,355 →
Method and Apparatus for Freezing Large Pipe
Patent:
5,836,167 →
Application:
08/646,372 →
Related Assignments
(10)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignors Interest.
Jun 7, 1989
From: ADAMS, JOHN R.; PRICE, PATRICK S.; SMITH, JIM W.
To: PULSEARCH CONSOLIDATED TECHNOLOGY LTD., STE. 700, 10201 SOUTHPORT RD. S.W., CALGARY, ALBERTA, CANADA T2W 4X9
Reel/Frame 005088/0257 →
Assignment of Assignor's Interest
Mar 31, 1994
From: PULSEARCH CONSOLIDATED TECHNOLOGY LTD
To: NOWSCO WELL SERVICE LTD
Reel/Frame 006918/0591 →
Assignment of Assignor's Interest
Dec 7, 1995
From: MISSELBROOK, JOHN G.
To: NOWSCO WELL SERVICE, LTD.
Reel/Frame 007937/0666 →
Assignment of Assignor's Interest
Feb 12, 2002
From: BJ SERVICES COMPANY CANADA
To: BJ SERVICES COMPANY
Reel/Frame 012621/0390 →
Certificate of Amalgamation
Feb 12, 2002
From: NOWSCO-FRACMASTER LTD.
To: NOWSCO-FRACMASTER COMPANY
Reel/Frame 012621/0394 →
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-FRACMASTER LTD.
To: NOWSCO-FRACMASTER LTD.
Reel/Frame 012621/0538 →
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
Mar 8, 2002
From: NOWSCO-FRACMASTER LTD.
To: NOWSCO-FRACMASTER LTD.
Reel/Frame 012691/0561 →