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:
Apr. 28, 2020
Filed:
Dec. 15, 2015
Applicant:
Philip Morris Products S.a., Neuchatel, CH;
Inventor:
Stefanos Papakyrillou, Cortaillod, CH;
Assignee:
Philip Morris Products S.A., Neuchatel, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A24D 3/06 (2006.01); A24D 3/10 (2006.01); A24D 3/14 (2006.01);
U.S. Cl.
CPC ...
A24D 3/067 (2013.01); A24D 3/062 (2013.01); A24D 3/10 (2013.01); A24D 3/14 (2013.01);
Abstract
A smoking article includes a smokable material and a filter comprising filtration material that is downstream of the smokable material. The filtration material comprises a sheet of hydrophobic cellulosic material with hydrophobic groups covalently bonded to the cellulosic material.