Granted Patent
Utility
US 5,684,597 · App. 08/534,136
Method and device for coin diameter discrimination
Inventors:
Robin C. Hossfield, Christopher Ferguson, J. Scott Petty, Glenn W. Schwantes, William J. Quandt
Patented Case
View Patent ↗
Granted: Nov 4, 1997
Filed: Sep 26, 1995
Inventors
Robin C. Hossfield
Christopher Ferguson
J. Scott Petty
Glenn W. Schwantes
William J. Quandt
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.