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:
Aug. 31, 1993
Filed:
Jul. 20, 1990
Applicant:
Inventors:
Seetharama C Deevi, Midlothian, VA (US);
Mohammad R Hajaligol, Richmond, VA (US);
Diane S Kellogg, Ashland, VA (US);
Bruce E Waymack, Prince George, VA (US);
Assignee:
Philip Morris Incorporated, New York, NY (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A24D / ;
U.S. Cl.
CPC ...
131334 ; 131331 ; 131359 ;
Abstract
An improved carbonaceous heat source suitable for use in a smoking article is provided. The heat source is formed by mixing a carbon component, a catalytic precursor and a binder, forming the mixture into a shape, and supplying heat to the mixture. Upon combustion of the heat source, the catalytic precursor forms a catalyst that converts carbon monoxide produced during combustion of the heat source into a benign substance.