发明名称 Filter, smoking articles containing the same, filter strands and methods and devices for producing filters and smoking articles of this type
摘要 The invention relates to a filter (10) for tobacco products with a first terminal filter element (12), a second terminal filter element (14), a middle filter element (16) which is located between first and second terminal filter element and contains a granular filter material, and a casing (20), one part of one of the terminal filter elements (12) being displaceable vis-à-vis the casing (20). The invention furthermore relates to smoking articles with such filters, filter strands with two or more of the filters, and processes and devices for the production of such filters and tobacco products.
申请公布号 US8047977(B2) 申请公布日期 2011.11.01
申请号 US20050498625 申请日期 2005.01.31
申请人 PHILIP MORRIS USA INC. 发明人 LAUENSTEIN MICHAEL;BOIDO DANTE M.;AESCHLIMANN REYNALD M.
分类号 A24D3/04;B31C99/00;A24B15/00;A24D1/04;A24D3/02;A24D3/06;A24D3/16 主分类号 A24D3/04
代理机构 代理人
主权项
地址