Tubular cigarette device comprising cerium oxide
US7624739B2 · kind B2 · utility
50Cited by
17References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 9, 2005 |
| Grant date | Dec 1, 2009 |
| Priority date | — |
| Expiry date | Nov 9, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA24F13/00
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A device for minimizing cigarette sidestream smoke and reducing free-burn rate of a burning cigarette is disclosed. The device comprises a non-combustible tubular element encasing an effective length of a tobacco charge of a cigarette located in the tubular element. The tubular element minimizes sidestream smoke emission from a burning tobacco charge and reduces free-burn rate of such burning tobacco charge to increase the number of puffs from the burning tobacco charge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.