Granted Patent
Utility
US 4,786,721 · App. 06/896,290
Fiber-reactive dyes containing a vinylsulfonylalkylamino- or sulfonyl-arylaminotriazine moiety
Inventors:
Athanassios Tzikas, Peter Aeschlimann, Paul Herzig
Patented Case
View Patent ↗
Granted: Nov 22, 1988
Filed: Aug 13, 1986
Inventors
Athanassios Tzikas
Peter Aeschlimann
Paul Herzig
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.