| 发明名称 |
Cigarette filter |
| 摘要 |
A cigarette includes a filter element including a carbon-containing paper or a paper containing molecular sieves. The paper circumscribes filter material, such as cellulose acetate tow, within the filter element. The paper is useful as a plug wrap for a filter element.
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| 申请公布号 |
US5404890(A) |
申请公布日期 |
1995.04.11 |
| 申请号 |
US19930076711 |
申请日期 |
1993.06.11 |
| 申请人 |
R. J. REYNOLDS TOBACCO COMPANY |
发明人 |
GENTRY, JEFFERY S.;WOMBLE, KAREN M.;BANERJEE, CHANDRA K.;BLAKLEY, RICHARD L. |
| 分类号 |
A24D1/02;A24D1/04;A24D3/00;A24D3/04;A24D3/16;(IPC1-7):A24D3/00 |
主分类号 |
A24D1/02 |
| 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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