Granted Patent
Utility
US 6,549,518 · App. 09/212,438
Policing method and apparatus with small access amount to cell data table for policing determination
Inventor:
Tsugio Sugawara
Patented Case
View Patent ↗
Granted: Apr 15, 2003
Filed: Dec 16, 1998
Inventor
Tsugio Sugawara
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.