Protective helmet
US4538303A · kind A · utility
21Cited by
25References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 29, 1983 |
| Grant date | Sep 3, 1985 |
| Priority date | — |
| Expiry date | Jul 29, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S2/909
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A protective helmet, e.g. a motorcycle helmet has a chinpiece below its visor which defines an air passage with a member behind this chinpiece, permitting air to flow from an opening in this chinpiece uniformly over the interior of a visor to prevent fogging thereof by moisture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.