Granted Patent
Utility
US 4,866,162 · App. 06/914,556
Fiber-reactive fluoro-triazine containing dyestuff
Inventors:
Herbert Seiler, Gert Hegar
Patented Case
View Patent ↗
Granted: Sep 12, 1989
Filed: Oct 2, 1986
Inventors
Herbert Seiler
Gert Hegar
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.