Cigarette filters containing strands of tobacco-containing materials
US5025814A · kind A · utility
149Cited by
29References
34Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 12, 1987 |
| Grant date | Jun 25, 1991 |
| Priority date | — |
| Expiry date | May 12, 2007 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA24D3/04
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
Filter rods for cigarette manufacture include a plurality of strands of a reconstituted tobacco material. The tobacco material includes a sizing agent having a hydrophobic character. A rod having a circumference of about 24 mm can have about 320 strands of a sheet-like material cut at about 32 cuts per inch. The strands extend along the longitude of the rod. The filter elements provided from the rods provide a useful mouthpiece for cigarettes and also impart a unique tobacco taste.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.