Granted Patent
Utility
US 6,493,443 · App. 09/519,775
Self-generating return call service
Inventors:
Daniel Furman, David Phillip Silverman
Patented Case
View Patent ↗
Granted: Dec 10, 2002
Filed: Mar 7, 2000
Inventors
Daniel Furman
David Phillip Silverman
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.