Crush resistant filtering face mask
US6923182B2 · kind B2 · utility
84Cited by
40References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 18, 2002 |
| Grant date | Aug 2, 2005 |
| Priority date | — |
| Expiry date | Jul 18, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA41D13/1146
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A filtering face mask that includes a mask body that is adapted to fit over the nose and mouth of a person and a harness that is attached to the mask body. The mask body comprises i) a first shaping layer that has been molded; ii) a second shaping layer that has been molded; iii) a filtration layer that is disposed between the first and second shaping layers; iv) a first adhesive layer that adheres the first shaping layer to the filtration layer; and v) a second adhesive layer that adheres the second shaping layer to the filtration layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.