IP Library Assignment 006462/0394
Patent Assignment
Reel/Frame 006462/0394

Assignment of Assignors Interest.

Recorded: 1993-03-22 Pages: 3
Assignors
BACK, GERHARD
Executed: 1989-12-27
PUNTENER, ALOIS
Executed: 1989-12-27
Assignee
CIBA-GEIGY CORPORATION
PATENT DEPARTMENT, 444 SAWMILL RIVER ROAD, ARDSLEY, NEW YORK, 10502
Covered Property (1)
Preparation of 1:2 Chromium Complexes of One Sulfo Substituted and One Sulfonamido or the Like Substituted Azo Dyes
Patent: 5,229,502 →
Application: 07/483,144 →
Related Assignments (1)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Mar 17, 1997
From: CIBA-GEIGY CORPORATION
To: CIBA SPECIALTY CHEMICALS CORPORATION
Reel/Frame 008447/0920 →