IP Library › Assignment 033923/0067
Patent Assignment
Reel/Frame 033923/0067

Assignment of Assignor's Interest

Recorded: 2014-10-09 Pages: 4
Assignor
MARATHON OIL CANADA CORPORATION
Executed: 2013-12-05
Assignees
SHELL CANADA ENERGY
400 4TH AVENUE SW, CALGARY, ALBERTA, T2P 2H5, CANADA
CHEVRON CANADA LIMITED
500 5TH AVENUE SW, CALGARY, ALBERTA, T2P 0L7, CANADA
Covered Property (1)
Dry, Stackable Tailings and Methods for Producing the Same
Patent: 8,658,029 →
Application: 13/584,677 →
Publication: US 2012/0305452
Related Assignments (4)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Aug 17, 2012
From: DUYVESTEYN, WILLEM P. C.; KIFT, JULIAN
To: MARATHON OIL CANADA CORPORATION
Reel/Frame 028807/0690 →
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 →
Nunc Pro Tunc Assignment Feb 27, 2018
From: SHELL CANADA ENERGY
To: CANADIAN NATURAL UPGRADING LIMITED
Reel/Frame 045054/0463 →