Granted Patent
Utility
US 4,801,694 · App. 07/073,323
Triazinyl reactive dyestuffs in which triazinyl group is further substituted with a beta-chloroethylsulfonyl- or vinylsulfonylbutyrylamino moiety
Inventors:
Peter Scheibli, Karl Seitz, Herbert Seiler, Athanassios Tzikas
Patented Case
View Patent ↗
Granted: Jan 31, 1989
Filed: Jul 13, 1987
Inventors
Peter Scheibli
Karl Seitz
Herbert Seiler
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.