Granted Patent
Utility
US 5,732,348 · App. 08/429,856
Cellular telephone set capable of automatically selecting a control channel without switching operational modes from one to another
Inventor:
Noriko Norimatsu
Patented Case
View Patent ↗
Granted: Mar 24, 1998
Filed: Apr 27, 1995
Inventor
Noriko Norimatsu
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.