Full face cloth respiratory mask
US9981104B1 · kind B1 · utility
20Cited by
84References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2013 |
| Grant date | May 29, 2018 |
| Priority date | — |
| Expiry date | Jun 4, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2210/0618
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A full face mask made of cloth having a nasal portion, an oral portion and transition portions is disclosed. The nasal and oral portions are made of a cloth that is impermeable to air and have nasal and oral interfaces on them to facilitate a seal with a user's face. The transition portions have easy removal clips for the lower headgear straps and sealing assistance members for better sealing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.