Granted Patent
Utility
US 4,631,065 · App. 06/767,246
Reactive dyes, process for their preparation and use thereof
Inventors:
Karl Seitz, Peter Scheibli, Herbert Seiler
Patented Case
View Patent ↗
Granted: Dec 23, 1986
Filed: Aug 20, 1985
Inventors
Karl Seitz
Peter Scheibli
Herbert Seiler
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.