Granted Patent
Utility
US 4,746,732 · App. 06/636,363
Reactive disazo dyes containing halopyrimidyl and sulfonyl groups
Inventor:
Athanassios Tzikas
Patented Case
View Patent ↗
Granted: May 24, 1988
Filed: Jul 30, 1984
Inventor
Athanassios Tzikas
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.