IP Library › Assignment 028231/0263
Patent Assignment
Reel/Frame 028231/0263

Assignment of Assignor's Interest

Recorded: 2012-05-18 Pages: 4
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 Properties (3)
Method of Treating a Formation Using Deformable Proppants
Patent: 7,875,574 →
Application: 12/258,810 →
Publication: US 2009/0107672
Method of Treating a Formation Using Deformable Proppants
Patent: 8,062,998 →
Application: 12/977,462 →
Publication: US 2011/0088900
Method of Treating a Formation Using Deformable Proppants
Application: 13/283,776 →
Publication: US 2012/0090840
Related Assignments (3)
Other recorded transfers of the patents 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 →
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 →