Face mask for use with goggles
US4250577A · kind A · utility
76Cited by
3References
4Claims
0Family size
Inventor
Key dates
| Filing date | Jul 20, 1979 |
| Grant date | Feb 17, 1981 |
| Priority date | — |
| Expiry date | Jul 20, 1999 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA62B18/084
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A face mask shaped for the lower face below eye covering goggles includes a central attachment for securing to the nose piece of the goggles, and side holders for securing to the sides of the goggles, and a verturi nose covering on the mask to draw exhaled air from behind the mask permitting a fresh air flow behind the mask while moving.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.