Patent Assignment
Reel/Frame 015242/0879
Change of Name
Recorded: 2004-10-13
Pages: 4
Assignor
QUEST AIR GASES INC. TO QUESTAIR TECHNOLOGIES INC.
Executed: 2000-05-03
Assignee
QUESTAIR TECHNOLOGIES INC.
6961 RUSSELL AVENUE, BURNABY, BC, V5J 4R8, CANADA
Covered Property
(1)
High Frequency Pressure Swing Adsorption
Patent:
6,176,897 →
Application:
09/000,844 →
Related Assignments
(4)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Jul 21, 1999
From: KEEFER, BOWIE GORDON
To: QUESTOR INDUSTRIES INC.
Reel/Frame 010124/0173 →
Change of Name
Oct 13, 2004
From: QUESTOR INDUSTRIES INC. TO QUEST AIR GASES INC.
To: QUEST AIR GASES INC.
Reel/Frame 015242/0877 →
Assignment of Assignor's Interest
Mar 23, 2012
From: XEBEC ADSORPTION INC.
To: AIR PRODUCTS AND CHEMICALS INC.
Reel/Frame 027913/0646 →
Merger
Apr 27, 2012
From: QUESTAIR TECHNOLOGIES INC.
To: XEBEC ADSORPTION INC.
Reel/Frame 028120/0971 →