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Method and device for the checking of the number of access attempts to an electronic store, notably that of an integrated circuit of an object such as a credit card or a buyer's card

  • US 4,439,670 A
  • Filed: 11/10/1982
  • Issued: 03/27/1984
  • Est. Priority Date: 11/30/1979
  • Status: Expired due to Fees
First Claim
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1. A data bearing card or the like for gaining access to a utilization device, the card comprising means for storing an identification code which is interrogated for validity during an access attempt, said card further comprising permanent recording means of all valid and invalid access attempts and of the indication resulting from such respective attempts.

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