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The ornamental design for a respiratory mask, as shown and described.
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1. Respiratory mask
| Patent | Priority | Assignee | Title |
| D947363, | Aug 11 2020 | Face mask | |
| D947364, | Aug 14 2020 | Face mask | |
| D947365, | Oct 06 2020 | Face mask | |
| D958322, | Jul 21 2020 | SALLC INC.; SALLC INC | Face covering |
| D964548, | Jun 16 2020 | BAXTER ALEXANDER, LLC | Face mask with flap opening |
| D964549, | Sep 11 2020 | ROYALTON MUSIC CENTER | Musical instrument mask |
| D972717, | Jul 12 2021 | LG Electronics Inc | Cover band for mask type air purifiers |
| D973864, | May 04 2020 | Mask | |
| D974664, | Mar 19 2020 | Mitsufuji Corporation | Sanitary mask |
| D983356, | Jun 17 2020 | SHOCK DOCTOR, INC | Face covering |
| ER3409, | |||
| ER3713, | |||
| ER5384, | |||
| ER5571, |
| Patent | Priority | Assignee | Title |
| 20150283410, | |||
| 20170144000, | |||
| 20170258150, | |||
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
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| Date | Maintenance Schedule |