Granted Patent
Utility
US 6,314,407 · App. 09/480,116
POS terminal unit provided with customer approach notification function
Inventor:
Masahiro Maeno
Patented Case
View Patent ↗
Granted: Nov 6, 2001
Filed: Jan 10, 2000
Inventor
Masahiro Maeno
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.