Patent Assignment
Reel/Frame 010124/0173
Assignment of Assignor's Interest
Recorded: 1999-07-21
Pages: 2
Assignor
KEEFER, BOWIE GORDON
Executed: 1999-07-19
Assignee
QUESTOR INDUSTRIES INC.
6961 RUSSELL AVENUE, BURNABY, B.C., V5J 4, 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.
Change of Name
Oct 13, 2004
From: QUESTOR INDUSTRIES INC. TO QUEST AIR GASES INC.
To: QUEST AIR GASES INC.
Reel/Frame 015242/0877 →
Change of Name
Oct 13, 2004
From: QUEST AIR GASES INC. TO QUESTAIR TECHNOLOGIES INC.
To: QUESTAIR TECHNOLOGIES INC.
Reel/Frame 015242/0879 →
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 →