Granted Patent
Utility
US 6,508,711 · App. 09/492,158
Game machine having a main unit exchanging data with a portable slave machine
Inventor:
Yasushi Ono
Patented Case
View Patent ↗
Granted: Jan 21, 2003
Filed: Jan 27, 2000
Inventor
Yasushi Ono
Assignee (at issue)
Namco 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.