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Documents containing a magnetic strip with a bar code affixed thereto

  • US 5,932,870 A
  • Filed: 03/11/1996
  • Issued: 08/03/1999
  • Est. Priority Date: 03/11/1996
  • Status: Expired due to Fees
First Claim
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1. A document having provision for determining authentication thereof, comprising:

  • a) a sheet having human visual text printed thereon;

    b) a magnetic material having information encoded thereon that is attached to said sheet;

    c) a code containing information that is printed on said magnetic material with an invisible ink that may be seen only with light having certain specified wavelengths in which the ink may be viewed so that the code on the magnetic material will be hidden for security purposes; and

    wherein the information coded on said magnetic material is different from the magnetic information encoded in said magnetic material to embed authentication of the document in a manner not visible to the unaided human eye.

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