Air cleaning device
US9757674B2 · kind B2 · utility
12Cited by
4References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 11, 2015 |
| Grant date | Sep 12, 2017 |
| Priority date | — |
| Expiry date | Aug 13, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24F11/39
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An air cleaning device is provided. The air cleaning device includes: a main body; a filter configured to be disposed in the main body to purify air; and an image transmitter configured to show a state of the filter to an outside of the main body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.