Disposable full-face surgical mask
US4296746A · kind A · utility
69Cited by
5References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 18, 1979 |
| Grant date | Oct 27, 1981 |
| Priority date | — |
| Expiry date | Dec 18, 1999 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA62B18/02
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A lightweight, disposable face mask for covering the entire face of the wearer, which mask comprises a unitary shell of transparent plastic material having upper and lower portions joined at a ridge which traces the facial respiratory line. A band of flexible material is disposed along the ridge and creates an aerodynamic seal between the upper and lower portions of the mask when worn. A strip of soft, flexible material is secured to the mask along the periphery creating a soft, comfortable seal between the mask and the face of the wearer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.