Cigarette sidestream smoke and free-burn rate control device
US6748955B2 · kind B2 · utility
30Cited by
15References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 15, 2002 |
| Grant date | Jun 15, 2004 |
| Priority date | — |
| Expiry date | Apr 20, 2022 |
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.