| 发明名称 |
Concentric smoking filter having discrete tow and web filter media |
| 摘要 |
A concentric smoking filter in which one of the filter media is a fibrous tow, such as fibrous cellulose acetate tow, and one of the filter media is a web material, such as paper, is provided. The filter improves the taste, particularly, of "ultra-light" cigarettes.
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| 申请公布号 |
US5746230(A) |
申请公布日期 |
1998.05.05 |
| 申请号 |
US19950456003 |
申请日期 |
1995.05.31 |
| 申请人 |
PHILIP MORRIS INCORPORATED |
发明人 |
ARTERBERY, CYNTHIA W.;CALLAHAM, W. TIMOTHY;KERITSIS, GUS D.;WHITE, JR., MORRIS F. |
| 分类号 |
A24D3/04;A24D3/10;(IPC1-7):A24D3/02;A24D3/06 |
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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