Smoking Articles And Filter Therefor
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United States of America Patent
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-
N/A
Issued Date -
Dec 24, 2009
app pub date -
Jan 19, 2007
filing date -
Feb 16, 2006
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A filter for smoking articles includes two sections, a first section (2) comprising a longitudinally extending opening (4) surrounded by smoke impervious material (6) and a second section (8) comprising a core (10) having a high-pressure drop material, a circumscribing annulus (12) having a lower pressure drop filter material than the core. The first section (2) is generally adjacent to the tobacco section (18) of a cigarette (3) at a first end and is spaced from the second section (8). Moreover, the invention comprises ventilation holes (20) circumscribing the space or gap (14) between the first and second section or circumscribes the second section (8).
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Family
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Cited Art Landscape
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