Nasal mask with replaceable filter
US6752149B2 · kind B2 · utility
9Cited by
52References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 25, 2002 |
| Grant date | Jun 22, 2004 |
| Priority date | — |
| Expiry date | Jul 25, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA62B23/06
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A breathing filter with a nose mask, strap(s), and a filter member. The strap(s) are elastic, and serve to hold the nose mask over the user's nose. The filter member is a plug-in device allowing removal of the filter member and replacement of the filter member cartridge or the filter material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.