Two-piece welding helmet
USD431328S · kind S · design
18Cited by
13References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 9, 1999 |
| Grant date | Sep 26, 2000 |
| Priority date | — |
| Expiry date | Sep 26, 2014 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.