Granted Patent
Utility
US 6,463,147 · App. 09/299,545
Automated directory look-up over multiple switching systems
Inventor:
Richard L. Viet
Patented Case
View Patent ↗
Granted: Oct 8, 2002
Filed: Apr 26, 1999
Inventor
Richard L. Viet
Assignee (at issue)
Avaya Technology LLC
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.