Granted Patent
Utility
US 6,327,344 · App. 09/185,492
Enhanced network subscriber service (ENSS)
Inventor:
Dana W. Paxson
Patented Case
View Patent ↗
Granted: Dec 4, 2001
Filed: Nov 3, 1998
Inventor
Dana W. Paxson
Assignee (at issue)
Nortel Networks Limited
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.