Granted Patent
Utility
US 5,621,889 · App. 08/257,052
Facility for detecting intruders and suspect callers in a computer installation and a security system including such a facility
Inventors:
Jean-Marc Lermuzeaux, Thierry Emery, Patrice Gonthier
Patented Case
View Patent ↗
Granted: Apr 15, 1997
Filed: Jun 8, 1994
Inventors
Jean-Marc Lermuzeaux
Thierry Emery
Patrice Gonthier
Assignee (at issue)
Alcatel Alsthom Compagnie Generale d'Electricite
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.