Granted Patent
Utility
US 5,523,397 · App. 08/320,093
Reactive dyes, process for their preparation and the use thereof
Inventors:
Athanassios Tzikas, Claudia Carisch
Patented Case
View Patent ↗
Granted: Jun 4, 1996
Filed: Oct 7, 1994
Inventors
Athanassios Tzikas
Claudia Carisch
Assignee (at issue)
Ciba-Geigy
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.