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. 09, 2019
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);
U.S. Cl.
CPC ...
A24D 3/04 (2013.01); A24D 3/043 (2013.01); A24D 3/045 (2013.01);
Abstract
There is provided a filter for a smoking article, the filter including a hollow tube of filter material having an outer diameter and an inner diameter. The filter further includes a flow restrictor disposed in the hollow tube. At least one cross sectional dimension of the flow restrictor is larger than the inner diameter of the hollow tube, such that the flow restrictor engages with the hollow tube to retain the flow restrictor in the hollow tube. There is also provided a smoking article including such a filter.