Mask apparatus
US11931604B2 · kind B2 · utility
0Cited by
12References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 17, 2021 |
| Grant date | Mar 19, 2024 |
| Priority date | — |
| Expiry date | Mar 12, 2042 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA41D13/1107
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A mask apparatus includes a mask body and a mask body cover coupled to the mask body. The mask body includes a front surface, a rear surface, and a pair of air ducts disposed at left and right sides of the front surface. The mask body is configured to mount a pair of fan modules at suction sides of the pair of air ducts. The mask body cover covers the pair of air ducts and the pair of fan modules. The mask body defines a cover coupling groove along an edge of the mask body, and the cover coupling groove is coupled to an edge of the mask body cover.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.