Granted Patent
Utility
US 6,434,121 · App. 07/748,147
Telephone agent call management system
Inventors:
Wayne A. Davidson, Diana S. Winter
Patented Case
View Patent ↗
Granted: Aug 13, 2002
Filed: Aug 21, 1991
Inventors
Wayne A. Davidson
Diana S. Winter
Assignee (at issue)
LUCENT TECHNOLOGIES INC.
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.