IP Library › Assignment 039821/0619
Patent Assignment
Reel/Frame 039821/0619

Assignment of Assignor's Interest

Recorded: 2016-09-21 Pages: 3
Assignor
SANJEL CANADA LTD.
Executed: 2016-05-31
Assignee
1961531 ALBERTA LTD.
505 - 3RD STREET SW, SUITE 300, CALGARY, ALBERTA, T2P3E6, CANADA
Covered Property (1)
Pumice Containing Compositions for Cementing a Well
Patent: 7,867,954 →
Application: 12/256,081 →
Publication: US 2009/0105099
Related Assignments (4)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Dec 5, 2008
From: WARRENDER, NEIL; MAHMOUDKHANI, AMIR; HUYNH, NGA TU; SYLVESTRE, CHARLES
To: SANJEL LIMITED PARTNERSHIP
Reel/Frame 021932/0190 →
Assignment of Assignor's Interest Mar 14, 2013
From: SANJEL LIMITED PARTNERSHIP
To: SANJEL CANADA LTD.
Reel/Frame 029996/0642 →
Security Interest Sep 22, 2014
From: SANJEL CANADA LTD.
To: ALBERTA TREASURY BRANCHES
Reel/Frame 033788/0307 →
Change of Name Jan 6, 2017
From: 1961531 ALBERTA LTD.
To: SANJEL ENERGY SERVICES INC.
Reel/Frame 041275/0549 →