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The ornamental design for an air purification unit, as shown. |
FIG. 1 is a top, right, front perspective view of an air purification unit showing our new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a left side elevational view thereof;
FIG. 4 is a front elevational view thereof;
FIG. 5 is a right side elevational view thereof;
FIG. 6 is a rear elevational view thereof; and,
FIG. 7 is a bottom plan view thereof.
Lobdell, Vincent G., Cappadona, Richard R.
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Jul 03 1998 | HEALTHWAY PRODUCTS COMPANY, INC | CAPPADONA, RICHARD R | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 009308 | /0687 | |
Jul 03 1998 | LOBDELL, VINCENT G | HEALTHWAY PRODUCTS COMPANY, INC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 009308 | /0697 | |
Jul 08 1998 | Richard R., Cappadona | (assignment on the face of the patent) | / |
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