IP Library › Assignment 035731/0075
Patent Assignment
Reel/Frame 035731/0075

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)
Proppant Addition System and Method
Patent: 8,276,659 →
Application: 12/345,531 →
Publication: US 2009/0183874
Related Assignments (3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Mar 18, 2009
From: FORDYCE, VICTOR; LOREE, DWIGHT
To: GASFRAC ENERGY SERVICES INC.
Reel/Frame 022415/0005 →
Security Interest Jul 24, 2014
From: GASFRAC ENERGY SERVICES INC.
To: PNC BANK CANADA BRANCH
Reel/Frame 033395/0370 →
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 35731 Frame 75. Assignor(S) Hereby Confirms the Assignment. Nov 5, 2024
From: GASFRAC ENERGY SERVICES INC.
To: STEP ENERGY SERVICES LTD.
Reel/Frame 069333/0996 →