Patent Assignment
Reel/Frame 029755/0455
Change of Name
Recorded: 2013-02-05
Pages: 2
Assignor
ALBERTA PETROLEUM INDUSTRIES VALVE & B.O.P. SERVICES LTD.
Executed: 2009-12-16
Assignee
ALBERTA PETROLEUM INDUSTRIES LTD.
C/O 219, 6203 - 28 AVENUE, EDMONTON, T6L 6K3, CANADA
Covered Properties
(3)
Seal Assembly for Reciprocating Shaft
Seal Assembly with Means for Detecting Seal Failure
Seal configuration to reduce seal extrusion
Application:
10/723,846 →
Publication:
US 2004/0104540
Related Assignments
(8)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest
Jul 13, 2007
From: FOOTE, DEAN
To: DARWELL INDUSTRIES LTD.
Reel/Frame 019550/0644 →
Assignment of Assignor's Interest
Jul 18, 2007
From: FOOTE, DEAN
To: DARWELL INUSTRIES LTD.
Reel/Frame 019570/0633 →
Assignment of Assignor's Interest
Jul 26, 2007
From: FOOTE, DEAN
To: DARWELL INDUSTRIES LTD.
Reel/Frame 019614/0713 →
Assignment of Assignor's Interest
Oct 1, 2010
From: DELBRIDGE, SCOTT
To: ALBERTA PETROLEUM INDUSTRIES LTD.
Reel/Frame 025077/0211 →
Assignment of Assignor's Interest
Oct 1, 2010
From: DELBRIDGE, CLAYTON
To: ALBERTA PETROLEUM INDUSTRIES LTD.
Reel/Frame 025077/0227 →
Assignment of Assignor's Interest
Feb 10, 2011
From: DELBRIDGE, SCOTT
To: A.P.I. VALVE & B.O.P. SERVICES LTD.
Reel/Frame 025786/0405 →
Assignment of Assignor's Interest
Feb 4, 2013
From: DARWELL INDUSTRIES LTD.,
To: ALBERTA PETROLEUM INDUSTRIES LTD.,
Reel/Frame 029747/0928 →
Change of Name
Feb 5, 2013
From: A.P.I. VALVE & B.O.P. SERVICES LTD.
To: ALBERTA PETROLEUM INDUSTRIES VALVE & B.O.P. SERVICES LTD.
Reel/Frame 029755/0436 →