Granted Patent
Utility
US 6,173,184 · App. 08/840,797
Network system for mobile radio communication with line switching
Inventors:
Tsuneyuki Kikuchi, Hidehiro Matsumoto
Patented Case
View Patent ↗
Granted: Jan 9, 2001
Filed: Apr 16, 1997
Inventors
Tsuneyuki Kikuchi
Hidehiro Matsumoto
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.