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Method for ascertaining valid address codes

  • US 6,970,868 B2
  • Filed: 03/12/2002
  • Issued: 11/29/2005
  • Est. Priority Date: 03/13/2001
  • Status: Expired due to Fees
First Claim
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1. A computer implemented method for determining whether an address is valid, comprising the steps of:

  • determining a postal code for the address;

    coarsening the address so as to create a coarsened address if the postal code was determined;

    determining another postal code for the coarsened address;

    repeating the steps of coarsening and determining another postal code if the another postal code was determined.

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