Granted Patent
Utility
US 5,383,952 · App. 08/210,086
Process for binding dust in fertilizer granules
Inventors:
Arno Singewald, Otto Wendt, Gunter Nurnberger, Dieter Paetz, Wolfgang Walczyk, Klaus Muller
Patented Case
View Patent ↗
Granted: Jan 24, 1995
Filed: Mar 16, 1994
Inventors
Arno Singewald
Otto Wendt
Gunter Nurnberger
Dieter Paetz
Wolfgang Walczyk
Klaus Muller
Assignee (at issue)
Kali und Salz GmbH
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.