Smoking articles
US5738120A · kind A · utility
7Cited by
3References
35Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 6, 1996 |
| Grant date | Apr 14, 1998 |
| Priority date | — |
| Expiry date | Jun 6, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA24D3/041
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A smoking article comprising a smoking rod, a filter and ventilation means incorporated in the filter and communicating with the outside of the smoking article, viscous fluid in the ventilation means closing or partially closing the ventilation means, the viscous fluid being displaceable during use of the smoking article enabling ventilation to occur.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.