IP Library › Assignment 018250/0041
Patent Assignment
Reel/Frame 018250/0041

Assignment of Assignor's Interest

Recorded: 2006-09-14 Pages: 4
Assignors
VOSNIAK, CHARLES
Executed: 2006-09-07
VIS, THOMAS
Executed: 2006-09-12
TULISSI, MICHAEL
Executed: 2006-09-08
Assignee
TRICAN WELL SERVICE, LTD.
645-7TH AVENUE S.W., SUITE 2900, CALGARY, T2P 4G8, CANADA
Covered Property (1)
Method and System for Fracturing Subterranean Formations with a Proppant and Dry Gas
Patent: 7,735,551 →
Application: 11/317,123 →
Publication: US 2007/0000666
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Security Interest Jan 13, 2016
From: TRICAN WELL SERVICE LTD.
To: COMPUTERSHARE TRUST COMPANY OF CANADA
Reel/Frame 037482/0702 →
Security Interest Jun 2, 2022
From: FEDORA, BRADLEY P.D.
To: OLYMPIA TRUST COMPANY
Reel/Frame 060087/0101 →