Toy building block puzzle
US5601470A · kind A · utility
23Cited by
4References
3Claims
0Family size
Inventor
Key dates
| Filing date | Jan 2, 1996 |
| Grant date | Feb 11, 1997 |
| Priority date | — |
| Expiry date | Jan 2, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63F9/0098
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A toy building block puzzle comprises a plurality of at least five differently shaped building blocks. Each block has a peripheral side wall which may include a plurality of lugs and recesses. The lugs and recesses are shaped and sized to interlock two or more blocks together in a horizontal plane by which puzzles of geometric and alphabetic configurations may be formed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.