Chipable mineral composition for an excavation toy including a buried object
US5972101A · kind A · utility
1Cited by
6References
10Claims
0Family size
Inventors
Key dates
| Filing date | Jun 7, 1996 |
| Grant date | Oct 26, 1999 |
| Priority date | — |
| Expiry date | Jun 7, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2111/54
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A composition with the required chipping characteristics can be formed into a solid block surrounding objects to be exposed by chipping away the material of the block to define a paleontology or similar toy. The composition contains rounded granite particles of two different mesh sizes, a wax filler material in the interstices between the particles and a separate binder to form the structure into a solid block.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.