Patent
   D881379
Priority
Dec 09 2019
Filed
Dec 09 2019
Issued
Apr 14 2020
Expiry
Apr 14 2035
Assg.orig
Entity
unknown
3
37
n/a
The ornamental design for a protective mask, as shown and described.

FIG. 1 is a front elevational view of a protective mask showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a perspective view thereof.

Zhan, Han

Patent Priority Assignee Title
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D979045, Nov 10 2020 Full face respirator
ER3285,
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Dec 08 2019ZHAN, HANCHANGZHOU CHUDENG TRADING CO , LTD ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0513550003 pdf
Dec 09 2019CHANGZHOU CHUDENG TRADING CO., LTD.(assignment on the face of the patent)
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