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The ornamental design for an air purifier, as shown. |
FIG. 1 is a right front perspective view of an air purifier showing my new design;
FIG. 2 is a right rear perspective view thereof;
FIG. 3 is a top plan view thereof;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is a right side elevation view thereof on a reduced scale;
FIG. 6 is a front elevation view thereof on a reduced scale;
FIG. 7 is a left side elevation view thereof on a reduced scale; and,
FIG. 8 is a rear elevation view thereof on a reduced scale.
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D970708, | Jan 18 2022 | Dongguan Huifeng Tech. Co., Ltd. | Air purifier |
D970709, | Jan 18 2022 | Dongguan Huifeng Tech. Co., Ltd. | Air purifier |
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Dec 12 1997 | WASSER, PATRICIA E , PER REP OF THE ESTATE OF WASSER, ROBERT E | ENVIROZONE INDUSTRIES, INC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 008933 | /0811 |
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