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The ornamental design for an air purifier, as shown. |
FIG. 1 is a perspective view of an air purifier showing my new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a left side elevational view thereof;
FIG. 5 is a right side elevational view thereof;
FIG. 6 is a top plan view thereof; and,
FIG. 7 is a bottom plan view thereof.
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D434129, | May 03 2000 | Hung Hsing Electric Co., Ltd. | Air purifier |
D552226, | Nov 24 2006 | Royal-G Enterprise Co., Ltd. | Humidifier |
D877877, | Jan 21 2019 | Hutzler Manufacturing Co., Inc. | Odor absorber |
Patent | Priority | Assignee | Title |
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Jul 23 1999 | HUANG, PING | HUNG HSING ELECTRIC CO , LTD | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 010131 | /0475 | |
Jul 27 1999 | Hung Hsing Electric Co., Ltd. | (assignment on the face of the patent) | / |
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