Patent Assignment
Reel/Frame 003998/0104
Assignment of Assignors Interest.
Recorded: 1982-04-28
Pages: 2
Assignors
GROVES, CHRISTOPHER K.
Executed: 1982-02-24
DUNCAN, KEVIN
Executed: 1982-02-24
DARWALL, EDWARD C. D.
Executed: 1982-02-24
Assignee
MITEL CORPORATION
P.O. BOX 13089, KANATA, ONTARIO, K2K 1X3, CANADA
Covered Property
(1)
Integrated Circuit Planarizing Process
Patent:
4,523,975 →
Application:
06/372,690 →
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Grant of Patent Security Interest
Mar 31, 1998
From: MITEL CORPORATION, A CORP. OF CANADA
To: CANADIAN IMPERIAL BANK OF COMMERCE, AS SECURED PARTY
Reel/Frame 009114/0489 →
Release of Security Interest
Mar 7, 2001
From: CANADIAN IMPERIAL BANK OF COMMERCE
To: MITEL CORPORATION; MITEL SEMICONDUCTOR AMERICAS, INC., A DELAWARE CORPORATION; MITEL, INC., A DELAWARE CORPORATION; MITEL SEMICONDUCTOR, INC., A DELAWARE CORPORATION
Reel/Frame 011590/0406 →
Change of Name
Feb 13, 2002
From: MITEL CORPORATON; MITEL S.C.C.
To: ZARLINK SEMICONDUCTOR INC.
Reel/Frame 012590/0484 →