Granted Patent
Utility
US 6,507,580 · App. 09/013,037
Method of controlling a calling in distributed node exchange network, distributed node exchange and distributed node exchange network
Inventors:
Makoto Hokari, Isao OISHI
Patented Case
View Patent ↗
Granted: Jan 14, 2003
Filed: Jan 26, 1998
Inventors
Makoto Hokari
Isao OISHI
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.