Patent Assignment
Reel/Frame 003886/0195
Assignment of Assignors Interest.
Recorded: 1981-08-06
Pages: 1
Assignor
EVANS GRAHAM
Executed: 1980-11-07
Assignee
CIBA-GEIGY AG, A SWISS COMPANY
KLYBECKSTRASSE 141, 4001 BASLE, SWITZERLAND
Covered Property
(1)
Optical Brightening Agents and Photographic Materials Which Contain These Brightening Agents
Patent:
4,302,579 →
Application:
06/171,869 →
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignors Interest.
Apr 6, 1983
From: CIBA-GEIGY AG (A/K/A CIBA-GEIGY LIMITED)
To: H.A. WHITTEN & CO, A PARTNERSHIP
Reel/Frame 004117/0903 →
Assignment of Assignors Interest.
Aug 25, 1989
From: H.A. WHITTEN & CO.
To: CIBA-GEIGY AG
Reel/Frame 005184/0184 →
Assignment of Assignors Interest.
Jan 7, 1991
From: CIBA-GEIGY AG
To: ILFORD LIMITED, A CO. OF THE UNITED KINGDOM
Reel/Frame 005570/0521 →