Patent Assignment
Reel/Frame 027151/0676
Change of Name
Recorded: 2011-10-31
Pages: 2
Assignor
TECH-STAR ENERGY SERVICES INC.
Executed: 2010-03-04
Assignee
TECH-STAR FLUID SYSTEMS INC.
1110, 640 - 8TH AVENUE SW, CALGARY, T2P 1G7, CANADA
Covered Property
(1)
Drilling Fluid and Methods
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Jul 29, 2011
From: STOIAN, STEFAN ALEXANDRU; SMITH, CARL KEITH
To: TECHSTAR ENERGY SERVICES INC.
Reel/Frame 026671/0964 →
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 →