Chin portion of welding helmet visor
USD517745S1 · kind S1 · design
40Cited by
18References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 12, 2004 |
| Grant date | Mar 21, 2006 |
| Priority date | — |
| Expiry date | Mar 21, 2020 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.