Granted Patent
Utility
US 6,004,358 · App. 08/891,707
Batchwise dyeing of cellulosic textile material with indigo by the exhaust method
Inventors:
Rudolf Kruger, Gert Rainer Kuhnel, Georg Schnitzer
Patented Case
View Patent ↗
Granted: Dec 21, 1999
Filed: Jul 9, 1997
Inventors
Rudolf Kruger
Gert Rainer Kuhnel
Georg Schnitzer
Assignee (at issue)
BASF SE
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.