Granted Patent
Utility
US 4,885,360 · App. 07/275,651
Reactive dyes containing a sulfonyl and an aliphatic acyl reactive radical
Inventor:
Peter Scheibli
Patented Case
View Patent ↗
Granted: Dec 5, 1989
Filed: Nov 21, 1988
Inventor
Peter Scheibli
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.