CN300894832S - 复合高效过滤口罩(ty9399) - Google Patents
复合高效过滤口罩(ty9399)Info
- Publication number
- CN300894832S CN300894832S CN200730198843.8F CN200730198843F CN300894832S CN 300894832 S CN300894832 S CN 300894832S CN 200730198843 F CN200730198843 F CN 200730198843F CN 300894832 S CN300894832 S CN 300894832S
- Authority
- CN
- China
- Prior art keywords
- mask
- high efficiency
- efficiency filter
- composite high
- filter mask
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
1.左视图与右视图对称，省略左视图。2.该口罩折叠状态外形呈鱼形状。3.该口罩上盖、正面和下盖三部分组成。4.口罩的上盖和正面呈折叠状，佩戴时折叠部分展开增大呼吸空间。5.在口罩的上盖上设有鼻夹。
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN300894832S true CN300894832S (zh) | 2009-03-18 |
Family
ID=
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9868002B2 (en) | 2014-07-17 | 2018-01-16 | 3M Innovative Properties Company | Respirator including contrast layer |
| US10639506B2 (en) | 2013-08-20 | 2020-05-05 | 3M Innovative Properties Company | Personal respiratory protection device |
| US11154735B2 (en) | 2013-08-20 | 2021-10-26 | 3M Innovative Properties Company | Personal respiratory protection device |
| US11241595B2 (en) | 2013-08-20 | 2022-02-08 | 3M Innovative Properties Company | Personal respiratory protection device |
| US11247079B2 (en) | 2013-08-20 | 2022-02-15 | 3M Innovative Properties Company | Personal respiratory protection device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10639506B2 (en) | 2013-08-20 | 2020-05-05 | 3M Innovative Properties Company | Personal respiratory protection device |
| US11154735B2 (en) | 2013-08-20 | 2021-10-26 | 3M Innovative Properties Company | Personal respiratory protection device |
| US11241595B2 (en) | 2013-08-20 | 2022-02-08 | 3M Innovative Properties Company | Personal respiratory protection device |
| US11247079B2 (en) | 2013-08-20 | 2022-02-15 | 3M Innovative Properties Company | Personal respiratory protection device |
| US9868002B2 (en) | 2014-07-17 | 2018-01-16 | 3M Innovative Properties Company | Respirator including contrast layer |
| US10576314B2 (en) | 2014-07-17 | 2020-03-03 | 3M Innovative Properties Company | Respirator including contrast layer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090318 Main classification number: 29-02 Termination date: 20100111 |