Granted Patent
Utility
US 5,957,143 · App. 08/953,443
Process for the mechanical cleaning of reusable drinks containers
Inventor:
Michael Schmidt
Patented Case
View Patent ↗
Granted: Sep 28, 1999
Filed: Oct 17, 1997
Inventor
Michael Schmidt
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.