Time-to-clean-filter indicator system for a popcorn popping machine and method
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United States of America Patent
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Nov 13, 2012
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N/A
app pub date -
Mar 13, 2007
filing date -
May 19, 2006
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Abstract
An indicator system for use with a popcorn popping machine providing a sensory perceptible signal to a user that ventilation filters should be cleaned. The indicator system may automatically track an interval based on a prior filter cleaning or usage of the popcorn popping machine.
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