Granted Patent
Utility
US 5,397,507 · App. 07/978,701
Process for the production of washing- and cleaning-active granules
Inventors:
Volker Bauer, Wilfried Raehse, Andreas Syldath, Ditmar Kischkel
Patented Case
View Patent ↗
Granted: Mar 14, 1995
Filed: Feb 3, 1993
Inventors
Volker Bauer
Wilfried Raehse
Andreas Syldath
Ditmar Kischkel
Assignee (at issue)
Henkel Kommanditgesellschaft auf Aktien
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.