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CLEANING IMPLEMENT HAVING A VISUAL INDICATOR FOR DETERMINING DEBRIS REMOVAL EFFECTIVENESS AND END OF USEFUL LIFE

  • US 20070192979A1
  • Filed: 03/16/2007
  • Published: 08/23/2007
  • Est. Priority Date: 05/31/2005
  • Status: Abandoned Application
First Claim
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1. An indicator for detecting cleanliness of at least one surface-contacting part in a cleaning implement, the indicator comprising:

  • a selected fabric material;

    wherein the material discolors upon exposure to particulate debris; and

    wherein the discoloration is discernible by visual inspection.

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