Granted Patent
Utility
US 4,509,543 · App. 06/531,753
Industrial dishwasher monitor/controller with speech capability
Inventors:
James W. Livingston, James G. Schontzler
Patented Case
View Patent ↗
Granted: Apr 9, 1985
Filed: Sep 12, 1983
Inventors
James W. Livingston
James G. Schontzler
Assignee (at issue)
Beta Technology, 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.