Tobacco – Tobacco users' appliance – Device used for smoking
Reexamination Certificate
2005-11-09
2009-12-01
Lopez, Carlos (Department: 1791)
Tobacco
Tobacco users' appliance
Device used for smoking
Reexamination Certificate
active
07624739
ABSTRACT:
A device for minimizing cigarette sidestream smoke and reducing free-burn rate of a burning cigarette is disclosed. The device comprises a non-combustible tubular element encasing an effective length of a tobacco charge of a cigarette located in the tubular element. The tubular element minimizes sidestream smoke emission from a burning tobacco charge and reduces free-burn rate of such burning tobacco charge to increase the number of puffs from the burning tobacco charge.
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PCT/CA97/00762 International Search Report dated Apr. 2, 1998.
Bowen Larry
Brackmann Warren A.
Snaidr Stanislav M.
Banner & Witcoff , Ltd.
Lopez Carlos
Rothmans, Benson & Hedges Inc.
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