Patent Assignment
Reel/Frame 020572/0356
Assignment of Assignor's Interest
Recorded: 2008-02-27
Pages: 3
Assignee
GAS-FRAC ENERGY SERVICES INC.
304-8TH AVENUE S.W., CALGARY, ALBERTA, T2P 1C2, CANADA
Covered Property
(1)
Liquified Petroleum Gas Fracturing System
Related Assignments
(4)
Other recorded transfers of the patent in this record — the chain of ownership.
Change of Name
Dec 23, 2010
From: GAS-FRAC ENERGY SERVICES INC.
To: GASFRAC ENERGY SERVICES INC.
Reel/Frame 025565/0944 →
Security Interest
Jul 24, 2014
From: GASFRAC ENERGY SERVICES INC.
To: PNC BANK CANADA BRANCH
Reel/Frame 033395/0370 →
Assignment of Assignor's Interest
May 28, 2015
From: GASFRAC ENERGY SERVICES INC.
To: STEP ENERGY SERVICES INC.
Reel/Frame 035730/0933 →
Corrective Assignment to Correct the Assignee’S Name on the Cover Sheet from Step Energy Services Inc. to Step Energy Services Ltd. Previously Recorded on Reel 35730 Frame 933. Assignor(S) Hereby Confirms the Assignment.
Nov 5, 2024
From: GASFRAC ENERGY SERVICES INC.
To: STEP ENERGY SERVICES LTD.
Reel/Frame 069307/0219 →