Granted Patent
Utility
US 5,867,577 · App. 08/402,063
Method and apparatus for authenticating a data carrier intended to enable a transaction or access to a service or a location, and corresponding carrier
Inventor:
Jacques Patarin
Patented Case
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Granted: Feb 2, 1999
Filed: Mar 9, 1995
Inventor
Jacques Patarin
Assignee (at issue)
Bull CP8
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.