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The ornamental design for an air purifier, as shown. |
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FIG. 1 is a left front perspective view of an air purifier;
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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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Aug 16 1993 | O GRADY, RICHARD M | Duracraft Corporation | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 006669 | /0762 | |
| Aug 20 1993 | Duracraft Corporation | (assignment on the face of the patent) | / | |||
| Nov 21 1996 | Duracraft Corporation | HONEYWELL CONSUMER PRODUCTS, INC | CHANGE OF NAME SEE DOCUMENT FOR DETAILS | 008854 | /0440 |
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