IP Library Assignment 035731/0111
Patent Assignment
Reel/Frame 035731/0111

Assignment of Assignor's Interest

Recorded: 2015-05-28 Pages: 4
Assignor
GASFRAC ENERGY SERVICES INC.
Executed: 2015-04-02
Assignee
STEP ENERGY SERVICES INC.
505 - 3RD STREET SW, 300, CALGARY, ALBERTA, T2P 3E6, CANADA
Covered Property (1)
Volatile-Phosphorus Free Gelling Agents
Patent: 8,871,693 →
Application: 13/057,275 →
Publication: US 2011/0143971
Related Assignments (5)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest May 3, 2011
From: COLLETT, CHRIS
To: MTS HOLDINGS INC.
Reel/Frame 026219/0777 →
Assignment of Assignor's Interest May 4, 2011
From: MTS HOLDINGS INC.
To: GASFRAC ENERGY SERVICES INC.
Reel/Frame 026227/0696 →
Assignment of Assignor's Interest May 6, 2011
From: MESHER (AKA SHAUN T. MESHER AND SHAUN MESHER), SHAUN T. E.
To: GASFRAC ENERGY SERVICES INC.
Reel/Frame 026240/0070 →
Security Interest Jul 24, 2014
From: GASFRAC ENERGY SERVICES INC.
To: PNC BANK CANADA BRANCH
Reel/Frame 033395/0370 →
Corrective Assignment to Correct the the Assignee Name Previously Recorded at Reel: 35731 Frame: 111. Assignor(S) Hereby Confirms the Assignment. Nov 5, 2024
From: GASFRAC ENERGY SERVICES INC.
To: STEP ENERGY SERVICES LTD.
Reel/Frame 069306/0639 →