METHOD OF GRADING MICROFIBER CLEANING CLOTHS
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United States of America Patent
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Issued Date -
Mar 22, 2012
app pub date -
Oct 5, 2011
filing date -
Jun 21, 2005
priority date (Note) -
Abandoned
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Abstract
A method of grading a microfiber cleaning cloth is provided. The method includes determining a basis weight of the microfiber cleaning cloth; assigning the microfiber cleaning cloth a heavy-duty grade if the basis weight is greater than 400 g/m2; assigning the microfiber cleaning cloth a medium-duty grade if the basis weight is between about 300 to 400 g/m2; and assigning the microfiber cleaning cloth a light-duty grade if the basis weight is less than about 300 g/m2.
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