Toy picnic set having latent image placemat
US5312656A · kind A · utility
3Cited by
17References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 5, 1993 |
| Grant date | May 17, 1994 |
| Priority date | — |
| Expiry date | Feb 5, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24893
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A placemat defining a translucent upper surface supporting a red/yellow obscuring design; a plate formed of a transparent red material; and a latent image formed on the placemat obscured by the red/yellow design, the plate being placed upon the placemat overlying the latent image to filter out the obscuring design and reveal the latent image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.