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Barcoded indicators for quality management

  • US 8,579,193 B2
  • Filed: 03/10/2010
  • Issued: 11/12/2013
  • Est. Priority Date: 06/10/2008
  • Status: Active Grant
First Claim
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1. A barcoded indicator operative to provide a machine-readable indication of exceedance of at least one threshold by at least one product quality affecting parameter, said barcoded indicator comprising:

  • a first barcode including a first plurality of barcode bars and at least one first colorable area,at least a second barcode including a second plurality of barcode bars and at least a second colorable area,a coloring agent located at a first location on said indicator, anda coloring agent pathway operative to allow said coloring agent to move, at a rate which is at least partially a function of time, from said first location to said first and second colorable areas for coloring thereof.

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