Granted Patent
Utility
US 6,131,045 · App. 08/962,612
Radio communication device for restricting specific function and method for restricting the function
Inventor:
Shinichiro Iwata
Patented Case
View Patent ↗
Granted: Oct 10, 2000
Filed: Nov 3, 1997
Inventor
Shinichiro Iwata
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.