Tobacco – Tobacco or tobacco substitute product or component part thereof
Reexamination Certificate
2006-12-11
2011-10-25
Crispino, Richard (Department: 1747)
Tobacco
Tobacco or tobacco substitute product or component part thereof
C131S352000, C131S360000, C131S354000, C131S365000
Reexamination Certificate
active
08042552
ABSTRACT:
A tobacco smoking mixture including an ammonia-release compound adapted to be formed into a lit-end cigarette is provided. The ammonia-release compound is incorporated in or on tobacco cut filler in an amount effective to reduce the cytotoxicity, and/or selective smoke constituents of cigarette smoke. Exemplary ammonia-release compounds include ammonium acetate, ammonium hydroxide, hexammine cobalt (III) chloride, hexammine cobalt (III) acetate, and combinations thereof. The ammonia-release compounds can release ammonia at temperatures between about 60° C. and about 400° C. Ammonia-release compounds can be combined with additives, such as glycerine, cobalt acetate, copper (II) acetate, zinc acetate, other metal salts or combinations thereof, to further reduce the cytotoxicity of cigarette smoke.
REFERENCES:
patent: 2227863 (1941-01-01), Rhodes
patent: 2525785 (1950-10-01), Feinstein et al.
patent: 2914072 (1959-11-01), Tyrer et al.
patent: 3251365 (1966-05-01), Keith, II et al.
patent: 3285253 (1966-11-01), Lebert
patent: 3355317 (1967-11-01), Keith, II et al.
patent: 3528432 (1970-09-01), Stossel
patent: 3782393 (1974-01-01), Michelson
patent: 4022223 (1977-05-01), Rainer et al.
patent: 4123592 (1978-10-01), Rainer et al.
patent: 4125118 (1978-11-01), Rudner
patent: 4184495 (1980-01-01), Rainer et al.
patent: 4266562 (1981-05-01), Merritt et al.
patent: 4274427 (1981-06-01), Lendvay
patent: 4628947 (1986-12-01), Driscoll et al.
patent: 5018540 (1991-05-01), Grubbs et al.
patent: 5053540 (1991-10-01), Cottman
patent: 6289898 (2001-09-01), Fournier et al.
patent: 6440223 (2002-08-01), Dube et al.
patent: 6701936 (2004-03-01), Shafer et al.
patent: 7690387 (2010-04-01), Fournier et al.
patent: 2005/0000531 (2005-01-01), Shi
patent: 2006/0090768 (2006-05-01), Fournier
International Search Report and Written Opinion dated Sep. 18, 2007 for PCT/IB2006/004115.
Chan W. Geoffrey
Hajaligol Mohammad
Xue Lixin
Buchanan & Ingersoll & Rooney PC
Crispino Richard
Nguyen Phu
Philip Morris USA Inc.
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