Smoking articles
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 21, 1989
Grant Date -
N/A
app pub date -
Sep 16, 1988
filing date -
Sep 22, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
There is provided a cigarette 10 having a tobacco rod 12 and a filter plug 14. Between the rod 12 and the plug 14 is disposed a porous element 16 containing an aroma precursor which, when the cigarette smoulders down to the butt, is burnt by the coal to release an agreeable aroma into the atmosphere.
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