Patent Assignment
Reel/Frame 031637/0118
Change of Name
Recorded: 2013-11-14
Pages: 2
Assignor
TECHSTAR ENERGY SERVICES INC.
Executed: 2010-03-04
Assignee
TECH-STAR FLUID SYSTEMS INC.
625, 404 - 6 AVENUE SW, CALGARY, T2P 0R9, CANADA
Covered Property
(1)
Drilling Fluid and Method for Drilling in Coal-Containing Formations
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Nov 14, 2013
From: STOIAN, STEFAN ALEXANDRU; SMITH, CARL KEITH
To: TECHSTAR ENERGY SERVICES INC.
Reel/Frame 031601/0716 →
Assignment of Assignor's Interest
Feb 21, 2014
From: TECH-STAR FLUID SYSTEMS INC.
To: CANADIAN ENERGY SERVICES L.P.
Reel/Frame 032267/0036 →
Security Interest
Jan 30, 2015
From: CANADIAN ENERGY SERVICES L.P.
To: THE BANK OF NOVA SCOTIA
Reel/Frame 034857/0635 →