Granted Patent
Utility
US 5,861,818 · App. 08/645,257
Radio paging selective receiver with display for notifying presence of unread message based on time of receipt
Inventor:
Michihito Ohtsuki
Patented Case
View Patent ↗
Granted: Jan 19, 1999
Filed: May 13, 1996
Inventor
Michihito Ohtsuki
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.