Granted Patent
Utility
US 5,528,231 · App. 08/254,955
Method for the authentication of a portable object by an offline terminal, and apparatus for implementing the process
Inventor:
Jacques Patarin
Patented Case
View Patent ↗
Granted: Jun 18, 1996
Filed: Jun 7, 1994
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.