Patent Assignment
Reel/Frame 029019/0416
Assignment of Assignor's Interest
Recorded: 2012-09-25
Pages: 4
Assignee
MARATHON OIL CANADA CORPORATION
2400, 440 - 2ND AVENUE SW, CALGARY, T2P 5E9, CANADA
Covered Properties
(3)
Methods and Systems for In-Situ Extraction of Bitumen
Application:
13/557,842 →
Publication:
US 2013/0025861
Methods and Systems for in-Situ Extraction of Bitumen
Application:
61/511,921 →
Methods and Systems for in-Situ Extraction of Bitumen
Application:
61/525,590 →
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 029675/0197 →
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
Oct 17, 2014
From: MARATHON OIL CANADA CORPORATION
To: SHELL CANADA ENERGY; CHEVRON CANADA LIMITED
Reel/Frame 033973/0464 →