Patent Assignment
Reel/Frame 028257/0101
Assignment of Assignor's Interest
Recorded: 2012-05-23
Pages: 8
Assignee
MARATHON OIL CANADA CORPORATION
440 SECOND AVENUE SW, SUITE 2400, ERNST & YOUNG TOWER, CALGARY, ALBERTA, T2P 5E9, CANADA
Covered Properties
(2)
Methods of Preparing Bituminous Material for Bitumen Extraction
Application:
13/418,044 →
Publication:
US 2012/0228196
Methods of Preparing Bituminous Material for Bitumen Extraction
Application:
61/451,963 →
Related Assignments
(3)
Other recorded transfers of the patents 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 031972/0968 →