Granted Patent
Utility
US 5,568,854 · App. 08/317,796
Coin discrimination method
Inventors:
Stephen J. Hayes, Patrick R. Gorman
Patented Case
View Patent ↗
Granted: Oct 29, 1996
Filed: Oct 4, 1994
Inventors
Stephen J. Hayes
Patrick R. Gorman
Assignee (at issue)
Protel, 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.