Playpen
USD257299S · kind S · design
22Cited by
4References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 20, 1978 |
| Grant date | Oct 14, 1980 |
| Priority date | — |
| Expiry date | Oct 14, 1994 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.