Granted Patent
Utility
US 6,505,039 · App. 09/712,701
Call security system which detects fraud by examination of call history
Inventor:
John T. Boatwright
Patented Case
View Patent ↗
Granted: Jan 7, 2003
Filed: Nov 13, 2000
Inventor
John T. Boatwright
Assignee (at issue)
AT COMM 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.