1. Protective face mask
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1. Protective face mask
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Number | Date | Country | Kind |
---|---|---|---|
008053607 | Jul 2020 | EM | regional |
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D224277 | Venaleck | Jul 1972 | S |
D380545 | Nozaki | Jul 1997 | S |
5717991 | Nozaki | Feb 1998 | A |
D681881 | Pong | May 2013 | S |
D822195 | Kwong | Jul 2018 | S |
D885677 | Acosta | May 2020 | S |
D897606 | Oliver | Sep 2020 | S |
D912240 | Butler | Mar 2021 | S |
D936906 | Xin | Nov 2021 | S |
D939689 | Mallady, Jr. | Dec 2021 | S |
20070272248 | Lin | Nov 2007 | A1 |
20110203593 | Ishigami | Aug 2011 | A1 |
20110239347 | Beliveau | Oct 2011 | A1 |
20120180800 | Shibata | Jul 2012 | A1 |
20140196200 | Beliveau | Jul 2014 | A1 |
20200289860 | Hu | Sep 2020 | A1 |
20210093899 | Huang | Apr 2021 | A1 |
20210162089 | Zimmermann | Jun 2021 | A1 |
20210307419 | Harris | Oct 2021 | A1 |
20210352979 | Quinn | Nov 2021 | A1 |
20210368281 | Schnell | Nov 2021 | A1 |
20210368890 | Brizuela | Dec 2021 | A1 |
20210378325 | Mun | Dec 2021 | A1 |
20210392966 | Nguyen | Dec 2021 | A1 |
Entry |
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Design Wanted. U-Mask's Model 2 is the first biotech protective mask which not only blocks air contaminants on the surface but kills them on the inside too. Oct. 21, 2020. https://designwanted.com/design/u-mask-model-2-u-earth/ (Year: 2020). |
Youtube. KORFF presenta U-MASK. Jun. 24, 2020. https://www.youtube.com/watch?v=c4oa5z2QgVQ (Year: 2020). |