Granted Patent
Utility
US 6,807,403 · App. 09/866,734
Radio telephone apparatus
Inventor:
Mitsuru Tanaka
Patented Case
View Patent ↗
Granted: Oct 19, 2004
Filed: May 30, 2001
Inventor
Mitsuru Tanaka
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.