Granted Patent
Utility
US 5,504,810 · App. 08/125,467
Telecommunications fraud detection scheme
Inventor:
Bruce McNair
Patented Case
View Patent ↗
Granted: Apr 2, 1996
Filed: Sep 22, 1993
Inventor
Bruce McNair
Assignee (at issue)
AT&T CORP.
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.