Granted Patent
Utility
US 5,797,475 · App. 08/553,465
Coin validation
Inventors:
Richard Bointon, Richard Douglas Allan, Nicola Funnell
Patented Case
View Patent ↗
Granted: Aug 25, 1998
Filed: Mar 4, 1996
Inventors
Richard Bointon
Richard Douglas Allan
Nicola Funnell
Assignee (at issue)
Mars, Incorporated
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.