Granted Patent
Utility
US 5,533,727 · App. 08/312,709
Audit and pricing system for coin-operated games
Inventor:
Lawrence E. DeMar
Patented Case
View Patent ↗
Granted: Jul 9, 1996
Filed: Sep 27, 1994
Inventor
Lawrence E. DeMar
Assignee (at issue)
Williams Electronics Games, 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.