Granted Patent
Utility
US 5,934,579 · App. 08/832,452
Apparatus for treating suspensions
Inventors:
Wolfgang Hiersche, Wilfried Knott, Andreas Mehrwald
Patented Case
View Patent ↗
Granted: Aug 10, 1999
Filed: Apr 3, 1997
Inventors
Wolfgang Hiersche
Wilfried Knott
Andreas Mehrwald
Assignee (at issue)
Th. Goldschmidt. 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.