Smoking article with contoured filter portion
US10779566B2 · kind B2 · utility
0Cited by
10References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 18, 2013 |
| Grant date | Sep 22, 2020 |
| Priority date | — |
| Expiry date | Jun 19, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA24D3/17
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A smoking article includes a contoured filter element having a cylindrical rod end portion and a cylindrical mouth end portion and a contoured portion between the cylindrical rod end portion and the cylindrical mouth end portion. The contoured portion defines an exterior surface of the smoking article and having a first cross-sectional area that is less than a cross-sectional area of either the cylindrical rod end portion or the cylindrical mouth end portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.