Granted Patent
Utility
US 6,122,361 · App. 08/928,769
Automated directory assistance system utilizing priori advisor for predicting the most likely requested locality
Inventor:
Vishwa Gupta
Patented Case
View Patent ↗
Granted: Sep 19, 2000
Filed: Sep 12, 1997
Inventor
Vishwa Gupta
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.