Tobacco – Tobacco treatment – With fluid or fluent material
Reexamination Certificate
2005-05-24
2005-05-24
Walls, Dionne A. (Department: 1731)
Tobacco
Tobacco treatment
With fluid or fluent material
C131S300000, C131S290000
Reexamination Certificate
active
06895974
ABSTRACT:
Tobaccos are cured in a manner so as to provide tobaccos having extremely low tobacco specific nitrosamine (TSNA) contents. Harvested Virginia tobacco is subjected to flue-curing so as to provide flue-cured tobacco. During the curing processing steps, contact of the tobacco with nitric oxide gases, such as those produced as combustion products of propane burning heating units, is avoided. Tobacco in curing barns is not subjected to direct-fire curing techniques, but rather, heat for tobacco curing can be provided by heat exchange or electrical heating methods.
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DLA Piper Rudnick Gray Cary US LLP
Kelber Steven B.
R. J. Reynolds Tobacco Company
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