Granted Patent
Utility
US 5,846,339 · App. 08/646,363
Machine dishwashing process
Inventors:
Hans Wilhelm Masshoff, Udo Praeckel
Patented Case
View Patent ↗
Granted: Dec 8, 1998
Filed: Aug 26, 1996
Inventors
Hans Wilhelm Masshoff
Udo Praeckel
Assignee (at issue)
Diversey Lever, Inc.
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.