发明名称 |
Smoking article with open ended filter and restrictor |
摘要 |
A smoking article includes a tobacco rod adapted to produce mainstream smoke, and a filter having an upstream end and a downstream end, wherein the filter is arranged to receive mainstream smoke at the upstream end. The filter includes a tubular segment open at the downstream end thereof and a flow restrictor contained within the tubular segment. The filter is attached to the tobacco rod with tipping paper and includes an air-admissible ventilating zone at a location between the upstream end and the downstream end of the filter. |
申请公布号 |
US8235057(B2) |
申请公布日期 |
2012.08.07 |
申请号 |
US20080073656 |
申请日期 |
2008.03.07 |
申请人 |
LI SAN;BRAUNSHTEYN MICHAEL S.;OLEGARIO RAQUEL M.;JUPE RICHARD;GARTHAFFNER MARTIN;PHILIP MORRIS USA INC. |
发明人 |
LI SAN;BRAUNSHTEYN MICHAEL S.;OLEGARIO RAQUEL M.;JUPE RICHARD;GARTHAFFNER MARTIN |
分类号 |
A24D3/04 |
主分类号 |
A24D3/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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