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:
May. 05, 1998
Filed:
May. 31, 1995
Applicant:
Inventors:
Cynthia W Arterbery, Chesterfield, VA (US);
W Timothy Callaham, Richmond, VA (US);
Gus D Keritsis, Richmond, VA (US);
Morris F White, Jr, Richmond, VA (US);
Assignee:
Philip Morris Incorporated, New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
A24D / ; A24D / ;
U.S. Cl.
CPC ...
131331 ; 131336 ; 131340 ;
Abstract
A concentric smoking filter in which one of the filter media is a fibrous tow, such as fibrous cellulose acetate tow, and one of the filter media is a web material, such as paper, is provided. The filter improves the taste, particularly, of 'ultra-light' cigarettes.