In the drawings, the equal-length broken lines depict portions of the respirator that form no part of the claimed design.
In the drawings, the equal-length broken lines depict portions of the respirator that form no part of the claimed design.
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| 20180093114 | Woner | Apr 2018 | A1 |
| Number | Date | Country |
|---|---|---|
| 306370156 | Mar 2021 | CN |
| 001855461-0001 | Apr 2011 | EM |
| 00066558 | May 2008 | RU |
| Entry |
|---|
| “Leeko: Anti-Dust Spray Chemical Gas Dual Cartridge Respirator”. Found online at Amazon.com. Aug. 11, 2022. Reference dated Oct. 13, 2016. Retrieved from https://www.amazon.com/Leeko-Anti-dust-Cartridge-Respirator-Activated/dp/B01M4ILLSI?th=1. |
| “3M: 53P71 Large Dual Cartridge OV/P95 Respirator”. Found online at Amazon.com. Aug. 11, 2022. Reference dated Jan. 6, 2005. Retrieved from https://www.amazon.com/3M-53P71-Cartridge-Respirator-Assembly/dp/B000BQ8DJI. |
| “Vktech: Industrial Gas Chemical Anti-Dust Respirator Mask”. Found online at Amazon.com. Aug. 11, 2022. Reference dated Jan. 16, 2013. Retrieved from https://www.amazon.com/Vktech-Industrial-Chemical-Anti-Dust-Respirator/dp/B00B1YP7U2/. |
| “Globe Newswire: Cool, Comfortable, and Optically Clear Mask by Omni Labs Protects with 99.997% Filtration.” Found online at globenewswire.com. Sep. 29, 2022. Reference dated Sep. 23, 2021. Retrieved from https://www.globenewswire.com/en/news-release/2021/09/23/2302580/0/en/Cool-Comfortable-and-Optically-Clear-Mask-By-O. |