Smoking article
US4434804A · kind A · utility
10Cited by
4References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 9, 1981 |
| Grant date | Mar 6, 1984 |
| Priority date | — |
| Expiry date | Jun 9, 2001 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA24D1/18
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
Smoking articles, e.g. cigarettes, are disclosed into the fuel rod of which particulate smoke-modifying agent has been introduced in such a manner that the concentration of the agent is greater at one or each end of the fuel rod than that at the middle region of the fuel rod. The result of this variation in concentration of the smoke-modifying agent is that the amount of agent released into the smoke varies as the article is smoked. Various forms of smoking article are disclosed together with methods of production.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.