Granted Patent
Utility
US 6,542,583 · App. 08/812,470
Caller identification verification system
Inventor:
Glen A. Taylor
Patented Case
View Patent ↗
Granted: Apr 1, 2003
Filed: Mar 6, 1997
Inventor
Glen A. Taylor
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.