Recess filter and smokeable article containing a recess filter

Tobacco – Smoke separator or treater – Plural diverse elements

Reexamination Certificate

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Details

C131S344000, C131S331000

Reexamination Certificate

active

10332455

ABSTRACT:
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.

REFERENCES:
patent: 2106062 (1938-01-01), Rawlings
patent: 4357950 (1982-11-01), Berger
patent: 4481959 (1984-11-01), Byrne
patent: 4564030 (1986-01-01), Jessup et al.
patent: 4580584 (1986-04-01), Reynolds et al.
patent: 4611607 (1986-09-01), Reynolds et al.
patent: 4643206 (1987-02-01), Reynolds et al.
patent: 6827087 (2004-12-01), Wanna et al.
patent: 1056023 (1959-04-01), None
patent: 2 210 546 (1989-06-01), None
patent: 2210546 (1989-06-01), None
patent: WO 00/00047 (2000-01-01), None
patent: WO00/00047 (2000-01-01), None

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