Granted Patent
Utility
US 6,735,431 · App. 09/413,816
Information communicating method, information providing apparatus, radio-communication system and radio-communication terminal
Inventors:
Katsuyuki Tsunami, Yoshinao Kiuchi, Ken Nanjo
Patented Case
View Patent ↗
Granted: May 11, 2004
Filed: Oct 7, 1999
Inventors
Katsuyuki Tsunami
Yoshinao Kiuchi
Ken Nanjo
Assignee (at issue)
HITACHI, 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.