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:
Feb. 23, 2021
Filed:
Dec. 17, 2013
Applicant:
Philip Morris Products S.a., Neuchatel, CH;
Inventors:
Leonardo Nappi, Hauterive, CH;
Clement Besso, Neuchatel, CH;
Assignee:
Philip Morris Products S.A., Neuchatel, CH;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A24D 3/04 (2006.01); A24D 3/02 (2006.01);
U.S. Cl.
CPC ...
A24D 3/04 (2013.01); A24D 3/02 (2013.01); A24D 3/045 (2013.01);
Abstract
There is provided a filter for a smoking article, the filter including a filter segment of filter material and a flow restrictor. The flow restrictor is embedded in the filter segment and surrounded on all sides by the filter material. A cross sectional dimension of the flow restrictor measured perpendicular to a longitudinal direction of the filter is between about 60% and about 95% of the diameter of the filter segment. There is also provided a smoking article including such a filter.