Patent Assignment
Reel/Frame 006158/0321
Assignment of Assignors Interest.
Recorded: 1992-06-08
Pages: 2
Assignee
CIBA-GEIGY CORPORATION, A CORP. OF NY
444 SAW MILL RIVER ROAD, ARDSLEY, NEW YORK, 10502
Covered Property
(1)
Bisphthalide Lactones, Their Preparation and the Use Thereof in Recording Materials
Patent:
5,162,550 →
Application:
07/572,929 →
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.