Granted Patent
Utility
US 6,172,991 · App. 09/024,101
ATM Network with a filtering table for securing communication
Inventor:
Naoki Mori
Patented Case
View Patent ↗
Granted: Jan 9, 2001
Filed: Feb 17, 1998
Inventor
Naoki Mori
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.