Perfumed dust mask
US11412790B2 · kind B2 · utility
1Cited by
4References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 13, 2015 |
| Grant date | Aug 16, 2022 |
| Priority date | — |
| Expiry date | Nov 12, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA41D2400/42
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A face mask comprises a container coupled to a first surface of a face mask, a fragrance material disposed in the container, and an exhalation valve coupled to a second surface of the a face mask. The fragrance material comprises a fluid configured to evaporate from the fragrance material, and the container is configured to releasably engage the exhalation valve to form a closed chamber. The closed chamber is configured to enclose the fragrance material when the container is releasably engaged with the exhalation valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.