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Credit card containing electronic circuit

  • US 4,004,133 A
  • Filed: 12/30/1974
  • Issued: 01/18/1977
  • Est. Priority Date: 12/30/1974
  • Status: Expired due to Term
First Claim
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1. An article adapted to be carried on the person of an individual and containing concealed identifying information, comprisingan insulating substrate provided with visible indicia,an electronic serial memory storing an identifying binary value imbedded in said substrate, said serial memory including a counter, a decoder responsive to the output of said counter, and a plurality of bit-storage circuits each storing a 1 or a 0 information bit and being responsive sequentially to the output of said decoder, andelectrical terminals on at least one surface of said substrate connected to said memory for the application of an energizing current from an external power source to the memory.

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