Drink coasters
US4433823A · kind A · utility
8Cited by
13References
5Claims
0Family size
Inventor
Key dates
| Filing date | Jan 22, 1981 |
| Grant date | Feb 28, 1984 |
| Priority date | — |
| Expiry date | Jan 22, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/256
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
The present invention provides a coaster for a drink container characterized in that the coaster incorporates a microporous structure capable of absorbing liquids which fall upon the surface thereof. Such a coaster, provided it is of appropriate dimensions and porosity, can prevent any spillage or condensation from reaching the table surface, yet will remain externally dry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.