CIGARETTE FILTER
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United States of America Patent
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Issued Date -
Aug 2, 2012
app pub date -
Aug 5, 2010
filing date -
Aug 14, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention concerns an at least partially transparent cigarette filter tipping film comprising a biodegradable substrate, and softener in an amount of less than 25% by weight of the biodegradable substrate, and a cigarette filter comprising a filtration material encased in a cylinder of the said tipping film.
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