Granted Patent
Utility
US 4,830,175 · App. 07/101,190
Ice cream conveyor line cleaning system
Inventors:
Richard E. Durst, Edward M. Wight
Patented Case
View Patent ↗
Granted: May 16, 1989
Filed: Sep 25, 1987
Inventors
Richard E. Durst
Edward M. Wight
Assignee (at issue)
APV Glacier Industries, 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.