Aquarium filter containing a cartridge clog indicator
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United States of America Patent
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Nov 28, 2017
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app pub date -
Oct 3, 2014
filing date -
Oct 4, 2013
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Abstract
An aquarium filter and a method of indicating reduced flow through the filter. The aquarium filter includes a first chamber, a second chamber, and a filter cartridge separating the first chamber and the second chamber. A first flow path is defined through the filter cartridge separating the first chamber and the second chamber. The aquarium filter also includes spillway defining a second flow path and an indicator positioned in the second flow path.
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