Patent Assignment
Reel/Frame 021932/0190
Assignment of Assignor's Interest
Recorded: 2008-12-05
Pages: 7
Assignors
WARRENDER, NEIL
Executed: 2007-11-08
MAHMOUDKHANI, AMIR
Executed: 2007-10-31
HUYNH, NGA TU
Executed: 2007-10-31
SYLVESTRE, CHARLES
Executed: 2007-11-01
Assignee
SANJEL LIMITED PARTNERSHIP
200, 205 2ND STREET, S.W., CALGARY, ALBERTA, T2P 1N8, CANADA
Covered Property
(1)
Pumice Containing Compositions for Cementing a Well
Related Assignments
(4)
Other recorded transfers of the patent in this record — the chain of ownership.
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 →
Assignment of Assignor's Interest
Sep 21, 2016
From: SANJEL CANADA LTD.
To: 1961531 ALBERTA LTD.
Reel/Frame 039821/0619 →
Change of Name
Jan 6, 2017
From: 1961531 ALBERTA LTD.
To: SANJEL ENERGY SERVICES INC.
Reel/Frame 041275/0549 →