Smoking articles
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 23, 1992
Grant Date -
N/A
app pub date -
Sep 1, 1989
filing date -
Aug 30, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A cigarette having a wrapper comprising one to fifty percent by weight of calcium sulphate and/or calcium tartrate exhibits reduced sidestream smoke delivery and increased puff number.
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