Granted Patent
Utility
US 6,173,279 · App. 09/058,107
Method of using a natural language interface to retrieve information from one or more data resources
Inventors:
Esther Levin, Shrikanth Narayanan, Roberto Pieraccini, Ilija Zeljkovic
Patented Case
View Patent ↗
Granted: Jan 9, 2001
Filed: Apr 9, 1998
Inventors
Esther Levin
Shrikanth Narayanan
Roberto Pieraccini
Ilija Zeljkovic
Assignee (at issue)
AT&T CORP.
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.