Patent Assignment
Reel/Frame 024147/0807
Assignment of Assignor's Interest
Recorded: 2010-03-26
Pages: 8
Assignors
DUYVESTEYN, WILLEM P.C.
Executed: 2010-03-26
KIFT, JULIAN
Executed: 2010-01-26
THOMPSON, WHIP C.
Executed: 2010-01-26
Assignee
MARATHON OIL CANADA CORPORATION
440 - SECOND AVENUE, N.W., ERNST & YOUNG TOWER, CALGARY, T2P 5E9, CANADA
Covered Property
(1)
Methods for Extracting Bitumen from Bituminous Material
Application:
12/692,127 →
Publication:
US 2011/0180458
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
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
To: SHELL CANADA ENERGY; CHEVRON CANADA LIMITED
Reel/Frame 031972/0250 →