Banded cigarette wrapper with opened-area bands
US10681935B2 · kind B2 · utility
0Cited by
216References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 1, 2017 |
| Grant date | Jun 16, 2020 |
| Priority date | — |
| Expiry date | May 8, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA24D1/025
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A wrapper of a smoking article comprising a base web and banded regions comprising a leading edge, a trailing edge and a plurality of add-on material-free openings between said leading edge and said trailing edge. The add-on material-free openings establish a predetermined, nominal opened-area within said banded regions to control diffusivity. The add-on material can be applied by a gravure roller comprising a surface region with cells, cell-free areas and a chevron shape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.