Granted Patent
Utility
US 6,823,183 · App. 09/894,028
Telephone system having a telephone directory information
Inventor:
Hideki Narusawa
Patented Case
View Patent ↗
Granted: Nov 23, 2004
Filed: Jun 28, 2001
Inventor
Hideki Narusawa
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.