IP Library › Assignment 043176/0837
Patent Assignment
Reel/Frame 043176/0837

Security Agreement

Recorded: 2017-07-12 Pages: 10
Assignor
CANYON TECHNICAL SERVICES LTD.
Executed: 2017-06-15
Assignee
COMPUTERSHARE TRUST COMPANY OF CANADA
530 - 8TH AVENUE SW, SUITE 600, CALGARY, T2P 3S8, CANADA
Covered Property (1)
Method of Treating a Formation Using Deformable Proppants
Patent: 7,875,574 →
Application: 12/258,810 →
Publication: US 2009/0107672
Related Assignments (3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Jul 7, 2009
From: FULTON, ROBERT GORDON; PESKUNOWICZ, ADOLPH JOSEPH JOHN; OLSON, GARNET ROSS
To: CANYON TECHNICAL SERVICES, LTD.
Reel/Frame 022920/0247 →
Assignment of Assignor's Interest May 18, 2012
From: FULTON, ROBERT GORDON; PESKUNOWICZ, ADOLPH JOSEPH JOHN; OLSON, GARNET ROSS
To: CANYON TECHNICAL SERVICES, LTD.
Reel/Frame 028231/0263 →
Assignment of Assignor's Interest Jan 16, 2018
From: CANYON TECHNICAL SERVICES LTD.
To: TRICAN WELL SERVICE LTD.
Reel/Frame 044627/0351 →