Granted Patent
Utility
US 5,667,439 · App. 08/527,549
Gaming machine
Inventor:
Kazuo Okada
Patented Case
View Patent ↗
Granted: Sep 16, 1997
Filed: Sep 13, 1995
Inventor
Kazuo Okada
Assignee (at issue)
Universal Sales Co., Ltd.
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.