Patent Assignment
Reel/Frame 033233/0477
Assignment of Assignor's Interest
Recorded: 2014-07-02
Pages: 4
Assignor
MARATHON OIL CANADA CORPORATION
Executed: 2013-12-05
Assignees
SHELLCANADA ENERGY
400 4TH AVENUE S.W., CALGARY, T2P 2H5, CANADA
CHEVRON CANADA LIMITED
500 5TH AVENUE, CALGARY, T2P 0L7, CANADA
Covered Property
(1)
Method for Obtaining Bitumen from Tar Sands
Related Assignments
(6)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Jul 12, 2006
From: DUYVESTEYN, WILLEM P.C.; MORLEY, RAYMOND L.; HANSON, JAMES S.
To: WESTERN OIL SANDS USA, INC.
Reel/Frame 017923/0150 →
Assignment of Assignor's Interest
Dec 23, 2008
From: WESTERN OIL SANDS USA, INC.
To: MARATHON OIL CANADA CORPORATION
Reel/Frame 022022/0971 →
Change of Name
Jan 23, 2013
From: MARATHON OIL CANADA CORPORATION
To: MARATHON CANADIAN OIL SANDS HOLDING LIMITED
Reel/Frame 029676/0704 →
Change of Name
May 22, 2013
From: MARATHON CANADIAN OIL SANDS HOLDING LIMITED
To: MARATHON OIL CANADA CORPORATION
Reel/Frame 030467/0595 →
Assignment of Assignor's Interest
Jan 15, 2014
From: MARATHON OIL CANADA CORPORATION; ALBERTA CORPORATION
To: SHELL CANADA ENERGY; CHEVRON CANADA LIMITED
Reel/Frame 031971/0555 →
Nunc Pro Tunc Assignment
Feb 27, 2018
From: SHELL CANADA ENERGY
To: CANADIAN NATURAL UPGRADING LIMITED
Reel/Frame 045054/0463 →