发明名称 Recess filter and smokeable article containing a recess filter
摘要 The invention relates to a recess filter with a cavity associated with the mouth and provided with a cavity wall, in addition to one or more filter elements associated with the tobacco. The cavity wall surrounds either the cavity or the cavity and, at the most, one part of the filter element(s), whereby ambient air can enter the filter element(s) from the side in order to provide sufficient ventilation. The invention also relates to a stack of several recess filters in addition to a smokeable article, especially a cigarette or cigarillo comprising one such recess filter.
申请公布号 US7243659(B1) 申请公布日期 2007.07.17
申请号 US20000332455 申请日期 2000.07.12
申请人 PHILIP MORRIS USA INC. 发明人 LECOULTRE ETIENNE;BADERTSCHER THOMAS
分类号 A24D3/04;A24C5/47;A24D1/04 主分类号 A24D3/04
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