Breathing filter assembly
US11504555B2 · kind B2 · utility
0Cited by
4References
11Claims
0Family size
Inventor
Key dates
| Filing date | Aug 26, 2020 |
| Grant date | Nov 22, 2022 |
| Priority date | — |
| Expiry date | Apr 24, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA62B9/06
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A breathing filter assembly for filtering breathing air includes a breathing unit that includes a mouthpiece that can be placed in a user's mouth. The breathing unit includes a pair of nose tubes that can each be positioned in a respective one of the user's nostrils when the mouthpiece is positioned in the user's mouth. A filter is removably insertable into the breathing unit. The filter is made of an air permeable material to pass air therethrough for breathing. The filter extends into the mouthpiece and each of the nose tubes to filter air inhaled through the user's mouth or the user's nose.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.