Headgear
US11419378B2 · kind B2 · utility
0Cited by
12References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 20, 2020 |
| Grant date | Aug 23, 2022 |
| Priority date | — |
| Expiry date | Jan 28, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B71/10
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A hat, headband or helmet formed from a material (10) comprising first and second layers (11, 12) of material and a low friction interface (13) arranged between the layers to enable sliding of the first layer of material (11) relative to the second layer of material (12).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.