Fluid treatment device and counter mechanism
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United States of America Patent
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Apr 10, 2007
Issued Date -
N/A
app pub date -
Feb 17, 2004
filing date -
Aug 17, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
This invention relates to a color coded counter mechanism for a fluid treatment filter device which indicates to the consumer when to replace the filter. It also includes a selective pawl follower in the counter mechanism for permitting the filter device to be used in countries having different standards of filtration without requiring a new counter mechanism for each country.
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