Smoking article and filter therefor
US5657772A · kind A · utility
13Cited by
2References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 13, 1994 |
| Grant date | Aug 19, 1997 |
| Priority date | — |
| Expiry date | Dec 13, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA24D3/16
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A filter for a smoking article incorporating particles coated with platinum selectively reduces the amount of volatiles of mainstream smoking article smoke passing through the filter. The platinum may be a continuous or discontinuous coating, usually on a coating of another metal, and this coating(s) will usually encapsulate the particle substrate. This substrate may be low activity activated carbon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.