The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 05, 1993
Filed:
Nov. 21, 1991
Applicant:
Inventors:
Ian C Brown, Winchester, GB;
David J Dittrich, Southampton, GB;
Richard T Fiebelkorn, Southampton, GB;
Assignee:
British-American Tobacco Company Limited, London, GB;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A24B / ; A24B / ;
U.S. Cl.
CPC ...
131291 ; 131347 ; 131352 ;
Abstract
A smoking article which comprises tobacco treated with a high loading level of humectant and which has been expanded by a high level expansion process to produce expanded tobacco having a humectant loading level in the range of 4% to 15%. The particulate matter, water, nicotine and humectant free (PMWNHF) to nicotine delivery ratio of smoking articles according to the invention and smoked under standard machine smoking conditions is not more than 8 to 1.