Precious stone
USD340667S · kind S · design
15Cited by
4References
1Claims
0Family size
Inventor
Key dates
| Filing date | Jan 18, 1991 |
| Grant date | Oct 26, 1993 |
| Priority date | — |
| Expiry date | Oct 26, 2007 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.