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The ornamental design for air purifier, as shown and described.
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FIG. 1 is a top view of an air purifier.
FIG. 2 is a front view of the air purifier of FIG. 1.
FIG. 3 is a left side view of the air purifier of FIG. 1.
FIG. 4 is a right side view of the air purifier of FIG. 1.
FIG. 5 is a rear view of the air purifier of FIG. 1; and,
FIG. 6 is an elevated perspective view of the air purifier of FIG. 1.
The broken lines in the figures are for environmental purpose only and form no part of the claimed design.
Tseng, Dan Yu-Chan, Kaye, David N., Sheng, Liu
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Dec 22 2004 | TSENG, DAN YU-CHAN | A I AIR TECHNOLOGY, INC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 016141 | /0174 | |
| Dec 23 2004 | KAYE, DAVID N | A I AIR TECHNOLOGY, INC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 016141 | /0174 | |
| Dec 23 2004 | Sheng, Liu | A I AIR TECHNOLOGY, INC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 016141 | /0174 | |
| Dec 27 2004 | A.I. Air Technology, Inc. | (assignment on the face of the patent) | / |
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