Patent Assignment
Reel/Frame 004081/0726
Assignment of Assignors Interest.
Recorded: 1982-12-23
Pages: 1
Assignor
RENFREW, ANDREW H. M.
Executed: 1982-12-15
Assignee
IMPERIAL CHEMICAL INDUSTRIES LIMITED, A CORP. OF GREAT BRITAIN
MILLBAK, LONDON, S.W.1, ENGLAND, UNITED KINGDOM
Covered Property
(1)
Triphendioxazine Dyestuffs
Patent:
4,472,575 →
Application:
06/452,806 →
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Apr 29, 1994
From: IMPERIAL CHEMICAL INDUSTRIES PLC
To: ZENECA LIMITED
Reel/Frame 006965/0039 →
Assignment of Assignor's Interest
Sep 28, 2001
From: SYNGENTA LIMITED
To: AVECIA LIMITED
Reel/Frame 012302/0096 →
Correct Assignee Address at 012302/0096
Sep 29, 2005
From: SYNGENTA LIMITED
To: AVECIA LIMITED
Reel/Frame 016835/0967 →