Granted Patent
Utility
US 5,554,732 · App. 08/431,651
Fibre-reactive disazo dyestuffs
Inventors:
Rainer Nusser, Roland Wald
Patented Case
View Patent ↗
Granted: Sep 10, 1996
Filed: May 2, 1995
Inventors
Rainer Nusser
Roland Wald
Assignee (at issue)
Sandoz AG
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.