Patent ID: 9010653
Filing Date: 2015-04-21
Classification: G01D,G06K

Abstract:
1. An erasable barcode comprising: a reservoir; an ink of a color; an amount of the ink held in a pre-activation chamber; a barrier between the reservoir and the pre-activation chamber; a rate controlled migration medium; an absorptive medium; a transparent printable surface; a single machine readable barcode on the printable surface and proximal to the absorptive medium that is printed in a color similar to the color of ink; upon activation of the erasable barcode by removal of the barrier between the pre-activation chamber and the reservoir, the ink in the pre-activation chamber flows into the reservoir and across the reservoir to the migration medium, wherein the ink migrates across the migration medium to the absorptive medium wherein changing the color of the absorptive medium resulting in obscuring of the machine readable barcode and rendering the machine readable barcode unreadable.