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. 21, 2019
Filed:
Dec. 22, 2014
Applicant:
Philip Morris Products S.a., Neuchatel, CH;
Inventor:
Leonardo Nappi, Vallamand, CH;
Assignee:
Philip Morris Products S.A., Neuchatel, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A24D 3/00 (2006.01); A24D 1/00 (2006.01); A24F 1/00 (2006.01); D01F 8/00 (2006.01); A24F 47/00 (2006.01); A24D 3/06 (2006.01); A24D 1/02 (2006.01); A24D 3/10 (2006.01); A24D 3/14 (2006.01); A24D 1/04 (2006.01); A24D 3/02 (2006.01); A24D 3/04 (2006.01); A24D 3/08 (2006.01); D01F 8/02 (2006.01); D01F 8/14 (2006.01);
U.S. Cl.
CPC ...
A24D 3/068 (2013.01); A24D 1/02 (2013.01); A24D 1/045 (2013.01); A24D 3/0204 (2013.01); A24D 3/04 (2013.01); A24D 3/08 (2013.01); A24D 3/10 (2013.01); A24D 3/14 (2013.01); A24F 47/006 (2013.01); D01F 8/02 (2013.01); D01F 8/14 (2013.01); D10B 2201/22 (2013.01); D10B 2331/041 (2013.01); D10B 2401/12 (2013.01); D10B 2505/04 (2013.01);
Abstract
A filter for a smoking article includes a filter component formed from a solution of cellulose acetate and a degradable polymer in aceton, the degradable polymer being soluble in acetone and degrading in the presence of water. In a first aspect of the invention, the filter component is a filter segment () formed of a plurality of fibers formed from the degradable solution. In a second aspect of the invention, the filter component is a wrapper () circumscribing at least a segment of the filter.