Hand-held digital refractometer
USD449549S · kind S · design
20Cited by
2References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 7, 2000 |
| Grant date | Oct 23, 2001 |
| Priority date | — |
| Expiry date | Oct 23, 2015 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.