Patent Assignment
Reel/Frame 031987/0835
Assignment of Assignor's Interest
Recorded: 2014-01-16
Pages: 7
Assignor
TERVITA CORPORATION
Executed: 2012-11-21
Assignee
CANADIAN ENERGY SERVICES L.P.
SUITE 1400, 700 - 4TH AVENUE SW, CALGARY, ALBERTA, T2P 3J4, CANADA
Covered Properties
(3)
Water-Based Polymer Drilling Fluid and Method of Use
Application:
12/090,016 →
Publication:
US 2008/0214413
Water-Based Polymer Drilling Fluid and Method of Use
Application:
13/113,645 →
Publication:
US 2011/0224108
Water-Based Polymer Drilling Fluid and Method of Use
Application:
14/057,981 →
Publication:
US 2014/0041944
Related Assignments
(8)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest
Apr 11, 2008
From: EWANEK, JOHN
To: MUD KING DRILLING FLUIDS (2001) LTD.
Reel/Frame 020791/0127 →
Assignment of Assignor's Interest
Jan 2, 2009
From: MUD KING DRILLING FLUIDS (2008) LTD.
To: CCS CORPORATION
Reel/Frame 022048/0698 →
Notice of Grant of Security Interest in Patents
May 7, 2009
From: CCS CORPORATION
To: DEUTSCHE BANK AG NEW YORK BRANCH, AS COLLATERAL AGENT
Reel/Frame 022645/0715 →
Assignment of Assignor's Interest
Sep 27, 2011
From: EWANEK, JOHN
To: MUD KING DRILLING FLUIDS (2001) LTD.
Reel/Frame 026974/0340 →
Assignment of Assignor's Interest
Sep 27, 2011
From: MUD KING DRILLING FLUIDS (2008) LTD.
To: CCS CORPORATION
Reel/Frame 026975/0357 →
Change of Name
Apr 2, 2012
From: CCS CORPORATION
To: TERVITA CORPORATION
Reel/Frame 027975/0618 →
Grant of Security Interest in Patents
Feb 14, 2013
From: TERVITA CORPORATION
To: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS COLLATERAL TRUSTEE
Reel/Frame 029817/0826 →
Security Interest
Jan 30, 2015
From: CANADIAN ENERGY SERVICES L.P.
To: THE BANK OF NOVA SCOTIA
Reel/Frame 034857/0635 →