Spectrally balanced protective facemasks
US8209770B2 · kind B2 · utility
7Cited by
8References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 7, 2010 |
| Grant date | Jul 3, 2012 |
| Priority date | — |
| Expiry date | Sep 7, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B71/10
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
Protective eyewear is configured so that interior surfaces are associated with visual characteristics based on a use environment. Eyewear includes an interior surface having two or three horizontal zones that are assigned colors, gray levels, color coordinates, or other characteristics based on playing surface characteristics. Upper, middle, and lower interior portions can be associated with blue, green, and brown, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.