Granted Patent
Utility
US 6,312,331 · App. 09/533,181
Coin-receiving device
Inventor:
Masami Tamaki
Patented Case
View Patent ↗
Granted: Nov 6, 2001
Filed: Mar 22, 2000
Inventor
Masami Tamaki
Assignee (at issue)
Aruze Corp.
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.