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:
Jul. 02, 2019
Filed:
Jun. 12, 2015
Applicant:
British American Tobacco (Investments) Limited, London, GB;
Inventors:
John Roger Sampson, London, GB;
David Lewis, London, GB;
Assignee:
BRITISH AMERICAN TOBACCO (INVESTMENTS) LIMITED, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A24D 3/10 (2006.01); A24D 3/02 (2006.01); A24D 3/04 (2006.01); A24D 3/06 (2006.01);
U.S. Cl.
CPC ...
A24D 3/10 (2013.01); A24D 3/0212 (2013.01); A24D 3/048 (2013.01); A24D 3/063 (2013.01);
Abstract
A filter for a cigarette comprises a porous fitter rod and a material sheet wrapped around the filter rod and a cellulose acetate thread formed from substantially uncrimped cellulose acetate filaments. The cellulose acetate thread is positioned within the filter rod and extends along the central axis of the filter rod.