Protective helmet and liner
US5035009A · kind A · utility
196Cited by
11References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 27, 1990 |
| Grant date | Jul 30, 1991 |
| Priority date | — |
| Expiry date | Sep 27, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA42B3/121
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A protective helmet and liner therefor includes a sheet of sound deadening material which fits between impact force absorbing pad structures disposed on the interior of the protective helmet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.