Granted Patent
Utility
US 4,756,321 · App. 06/800,661
Industrial dishwasher chemical dispenser
Inventors:
James W. Livingston, Stephen Hosking
Patented Case
View Patent ↗
Granted: Jul 12, 1988
Filed: Nov 22, 1985
Inventors
James W. Livingston
Stephen Hosking
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.