Cigarette sidestream smoke and free-burn rate control device
US6371127B1 · kind B1 · utility
71Cited by
5References
44Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 15, 1999 |
| Grant date | Apr 16, 2002 |
| Priority date | — |
| Expiry date | Apr 15, 2019 |
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 the free-burn rate of a burning cigarette, the device comprises: I) a non-combustible tubular element (12) encasing an effective length of a tobacco charge (22) of a cigarette (14) located in a tubular element; and II) the tubular element having a means for both minimizing sidestream smoke emission from a burning tobacco charge and reducing 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.