Patent Assignment
Reel/Frame 022920/0247
Assignment of Assignor's Interest
Recorded: 2009-07-07
Pages: 3
Assignors
FULTON, ROBERT GORDON
Executed: 2009-05-06
PESKUNOWICZ, ADOLPH JOSEPH JOHN
Executed: 2009-04-27
OLSON, GARNET ROSS
Executed: 2009-04-27
Assignee
CANYON TECHNICAL SERVICES, LTD.
510 5TH STREET SW, SUITE 1600, CALGARY, ALBERTA, T2P 362, CANADA
Covered Property
(1)
Method of Treating a Formation Using Deformable Proppants
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
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 →
Security Agreement
Jul 12, 2017
From: CANYON TECHNICAL SERVICES LTD.
To: COMPUTERSHARE TRUST COMPANY OF CANADA
Reel/Frame 043176/0837 →
Assignment of Assignor's Interest
Jan 16, 2018
From: CANYON TECHNICAL SERVICES LTD.
To: TRICAN WELL SERVICE LTD.
Reel/Frame 044627/0351 →