Disposable coasters
US5018695A · kind A · utility
25Cited by
11References
20Claims
0Family size
Inventor
Key dates
| Filing date | Jun 8, 1989 |
| Grant date | May 28, 1991 |
| Priority date | — |
| Expiry date | Jun 8, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2317/12
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A coaster for use underneath liquid containers, such as drinking glasses, beverage cans, etc., comprises an upper pad formed of a liquid-absorbent material and a lower pad formed of a thermal insulating material. The two pads are separated by a liquid barrier material so that the insulating pad is maintained in a dry operable condition. A series of adhesive patches are arranged on the upper face of the coaster, whereby the coaster can be releasably attached to the bottom surface of a liquid container.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.