Filter segment including a substrate loaded with a smoke-modifying agent
US10918129B2 · kind B2 · utility
1Cited by
2References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2019 |
| Grant date | Feb 16, 2021 |
| Priority date | — |
| Expiry date | Feb 27, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/298
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A filter segment for use in a filter of a smoking article includes a substrate loaded with at least one smoke-modifying agent. The substrate is located within the body of the filter segment and is formed from filter plug wrap having an air permeability ranging from about 6,000 Coresta units to about 24,000 Coresta units.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.