Portable back rest or similar article
USD249217S · kind S · design
14Cited by
5References
1Claims
0Family size
Inventor
Key dates
| Filing date | Feb 24, 1976 |
| Grant date | Sep 5, 1978 |
| Priority date | — |
| Expiry date | Sep 5, 1992 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.