Patent Assignment
Reel/Frame 007937/0666
Assignment of Assignor's Interest
Recorded: 1995-12-07
Pages: 3
Assignor
MISSELBROOK, JOHN G.
Executed: 1995-08-04
Assignee
NOWSCO WELL SERVICE, LTD.
2750 801-6TH AVENUE S.W., CALGARY, ALBERTA T2P 4LB, CANADA
Covered Property
(1)
Safeguarded Method and Apparatus for Fluid Communiction Using Coiled Tubing, with Application to Drill Stem Testing
Patent:
5,638,904 →
Application:
08/564,355 →
Related Assignments
(5)
Other recorded transfers of the patent in this record — the chain of ownership.
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 →
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 →
Assignment of Assignor's Interest
Mar 8, 2002
From: NOWSCO-FRACMASTER LTD.
To: NOWSCO-FRACMASTER LTD.
Reel/Frame 012691/0561 →