Reusable coffee filter
US4255265A · kind A · utility
12Cited by
3References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 21, 1980 |
| Grant date | Mar 10, 1981 |
| Priority date | — |
| Expiry date | Apr 21, 2000 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47J31/0621
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
This invention relates to a permanently useable coffee filter comprising a funnel-shaped container, of which the base is provided with at least one outlet opening, and a funnel-shaped filter insert which is inserted into the container and of which the filter surface is situated at a distance from the wall of the container.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.