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Third millenium credit card with magnetically onto it written multiple validity dates, from which is one single day as the credit card's validity day selected day after day by the legitimate card owner

  • US 5,397,881 A
  • Filed: 11/22/1993
  • Issued: 03/14/1995
  • Est. Priority Date: 11/22/1993
  • Status: Expired due to Fees
First Claim
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1. A credit card with changeable expiration dates and hours, which can be changed every day by means of selective erasing of certain magnetic markings from multiple expiration date markings on this card and by means of selective erasing of magnetic markings for selected shopping hours on this card, with a permanent magnet, with an erasing head of a tape recorder or with an electromagnet;

  • and onto which credit card, while it is swiped through a point-of-sales scanner, are rewritten, or are rewritten by some other means, magnetic markings for these expiration dates, which were previously selectively erased.

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