Tobacco rods and filters
US4924887A · kind A · utility
33Cited by
21References
40Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 3, 1986 |
| Grant date | May 15, 1990 |
| Priority date | — |
| Expiry date | Feb 3, 2006 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA24D3/06
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
Tobacco containing cigarette filter plugs comprise strands of tobacco material which are bound with an activated binding agent. The filter plugs exhibit good firmnless and integrity, and provide cigarettes exhibiting a unique tobacco taste. Filter plugs are prepared by forming an intimate admixture of tobacco material and binding agent, forming rods and activating the binding agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.