Granted Patent
Utility
US 6,542,147 · App. 09/724,997
Menu selection input device
Inventor:
Koji Kobayashi
Patented Case
View Patent ↗
Granted: Apr 1, 2003
Filed: Nov 29, 2000
Inventor
Koji Kobayashi
Assignee (at issue)
NEC CORPORATION
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.