Process for treating tobacco
US4630619A · kind A · utility
7Cited by
0References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 16, 1983 |
| Grant date | Dec 23, 1986 |
| Priority date | — |
| Expiry date | Dec 16, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S131/90
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An improved tobacco treating process comprising cooling tobacco in a liquid nitrogen bath, impregnating the mixture with carbon dioxide gas under preselected pressure conditions, releasing the pressure and subjecting the so treated tobacco to drying gases with temperatures at least above about 250.degree. F. with wet bulb temperatures in the range of at least about 150.degree. F. with a maximum of 212.degree. F.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.