Patent Assignment
Reel/Frame 003939/0988
Assignment of Assignors Interest.
Recorded: 1981-10-13
Pages: 2
Assignor
BELL-NORTHERN RESEARCH LTD.,
Executed: 1981-09-29
Assignee
NORTHERN TELECOM LIMITED
P.O. BOX 6123, STATION A., MONTREAL, QUEBEC, H3C 3J5, CANADA
Covered Property
(1)
Echo Cancellation Using Transversal Filters
Patent:
4,425,483 →
Application:
06/310,501 →
Related Assignments
(4)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignors Interest.
Oct 13, 1981
From: LEE, POK F.; BOND, JOHN A.
To: BELL-NORTHERN RESEARCH LTD.
Reel/Frame 003939/0986 →
Release of Security Interest
Jan 16, 1998
From: CARR, ALAN G.
To: THERION BIOLOGICS CORPORATION
Reel/Frame 008940/0525 →
Change of Name
Dec 23, 1999
From: NORTHERN TELECOM LIMITED
To: NORTEL NETWORKS CORPORATION
Reel/Frame 010567/0001 →
Change of Name
Aug 30, 2000
From: NORTEL NETWORKS CORPORATION
To: NORTEL NETWORKS LIMITED
Reel/Frame 011195/0706 →