Digital protractor
USD610477S1 · kind S1 · design
15Cited by
3References
1Claims
0Family size
Inventors
Key dates
| Filing date | Feb 13, 2009 |
| Grant date | Feb 23, 2010 |
| Priority date | — |
| Expiry date | Feb 23, 2024 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.