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Security document

  • US 6,089,610 A
  • Filed: 10/27/1997
  • Issued: 07/18/2000
  • Est. Priority Date: 10/27/1997
  • Status: Expired due to Term
First Claim
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1. A negotiable instrument operable for automatic scanning and processing comprising:

  • planner member of generally rectangular configuration;

    a first field area on said member coated with an invisible fluorescent ink;

    a second field area coated with an invisible fluorescent ink;

    code means for identifying each of said first and second field areas;

    first indicia in said first field area and a second indicia in said second field area;

    an algorithm for combining said first indicia with said second indicia to provide a sum,a third field area to receive said sum,a second algorithm means capable of associating said sum with said first indicia.

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