Granted Patent
Utility
US 6,597,676 · App. 09/550,807
CDMA communication system and method
Inventors:
Masayuki Ariyoshi, Nobukazu Doi, Tesshin Shiga, Yoshito Ohta
Patented Case
View Patent ↗
Granted: Jul 22, 2003
Filed: Apr 18, 2000
Inventors
Masayuki Ariyoshi
Nobukazu Doi
Tesshin Shiga
Yoshito Ohta
Assignees (at issue)
HITACHI, LTD.
Hitachi Denshi Kabushiki Kaisha
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.