Granted Patent
Utility
US 6,327,345 · App. 08/307,249
Method and system therefor of establishing an acceptance threshold for controlling fraudulent telephone calls
Inventor:
David Jordan
Patented Case
View Patent ↗
Granted: Dec 4, 2001
Filed: Sep 16, 1994
Inventor
David Jordan
Assignee (at issue)
MCI Communications Corporation
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.