Smokeless ashtray
US4671300A · kind A · utility
22Cited by
7References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 13, 1984 |
| Grant date | Jun 9, 1987 |
| Priority date | — |
| Expiry date | Jan 13, 2004 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA24F19/0042
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An ashtray for eliminating emitted smoke is disclosed. The ashtray defines, within its housing, a predetermined, fixed filter region. An air filter is positioned within and confined by the filter region to ensure that substantially all air passes through the filter medium of the air filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.