Granted Patent
Utility
US 5,460,631 · App. 08/260,153
Bifunctional reactive dyestuff mixture
Inventors:
Manfred Hoppe, Karl-Josef Herd, Konrad Bootz, Stefan Ehrenberg, Thomas Eizenhofer, Wolfgang Harms, Hermann Henk, Klaus Kunde, Stefan Meier, Wolfram Reddig
Patented Case
View Patent ↗
Granted: Oct 24, 1995
Filed: Jun 15, 1994
Inventors
Manfred Hoppe
Karl-Josef Herd
Konrad Bootz
Stefan Ehrenberg
Thomas Eizenhofer
Wolfgang Harms
Hermann Henk
Klaus Kunde
Stefan Meier
Wolfram Reddig
Assignee (at issue)
Bayer Aktiengesellschaft
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.