Electronic pyramid toy
USD259429S · kind S · design
8Cited by
6References
1Claims
0Family size
Inventor
Key dates
| Filing date | Jan 2, 1979 |
| Grant date | Jun 2, 1981 |
| Priority date | — |
| Expiry date | Jun 2, 1995 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.