Retractable chalk line
USD493377S1 · kind S1 · design
8Cited by
15References
1Claims
0Family size
Inventor
Key dates
| Filing date | Oct 24, 2003 |
| Grant date | Jul 27, 2004 |
| Priority date | — |
| Expiry date | Jul 27, 2018 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.