Patent Assignment
Reel/Frame 041275/0549
Change of Name
Recorded: 2017-01-06
Pages: 2
Assignor
1961531 ALBERTA LTD.
Executed: 2016-05-31
Assignee
SANJEL ENERGY SERVICES INC.
700 9TH AVE SW, 1400, CALGARY, T2P 3V4, CANADA
Covered Properties
(3)
Pumice Containing Compositions for Cementing a Well
Oil and Gas Well Cement Systems Using Elemental Sulfur
Oil and Gas Well Cement Systems Using Elemental Sulfur
Related Assignments
(10)
Other recorded transfers of the patents 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
Aug 8, 2012
From: MAHMOUDKHANI, AMIR H.; WARRENDER, NEIL
To: SANJEL LIMITED PARTNERSHIP
Reel/Frame 028750/0388 →
Assignment of Assignor's Interest
Aug 8, 2012
From: MAHMOUDKHANI, AMIR H.; WARREDER, NEIL
To: SANJEL LIMITED PARTNERSHIP
Reel/Frame 028750/0261 →
Assignment of Assignor's Interest
Mar 14, 2013
From: SANJEL LIMITED PARTNERSHIP
To: SANJEL CANADA LTD.
Reel/Frame 029996/0642 →
Assignment of Assignor's Interest
Mar 14, 2013
From: SANJEL LIMITED PARTNERSHIP
To: SANJEL CANADA LTD.
Reel/Frame 029996/0686 →
Assignment of Assignor's Interest
Mar 14, 2013
From: SANJEL LIMITED PARTNERSHIP
To: SANJEL CANADA LTD.
Reel/Frame 029996/0689 →
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 039821/0638 →
Assignment of Assignor's Interest
Sep 21, 2016
From: SANJEL CANADA LTD.
To: 1961531 ALBERTA LTD.
Reel/Frame 039821/0619 →
Assignment of Assignor's Interest
Sep 21, 2016
From: SANJEL CANADA LTD.
To: 1961531 ALBERTA LTD.
Reel/Frame 039821/0545 →