Granted Patent
Utility
US 5,657,210 · App. 08/662,075
Radio pager having a protection lid
Inventor:
Toshiki Yamanaka
Patented Case
View Patent ↗
Granted: Aug 12, 1997
Filed: Jun 12, 1996
Inventor
Toshiki Yamanaka
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.