Spill proof cup
US4869390A · kind A · utility
35Cited by
9References
2Claims
0Family size
Inventor
Key dates
| Filing date | Nov 25, 1988 |
| Grant date | Sep 26, 1989 |
| Priority date | — |
| Expiry date | Nov 25, 2008 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47G19/2205
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A non-spill container has a lower portion that holds less liquid than the upper portion and is provided with a closure that has a tube fitted therein that normally extends downwardly into the container. A straw may be placed in the tube for the withdrawal of liquid, the tube being of a size sufficient so that venting is automatically provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.