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The ornamental design for an air treatment unit, as shown and described. |
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FIG. 1 is a perspective view of a air treatment unit showing our new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a top plan view thereof;
FIG. 4 is a right side elevational view thereof, the left side being a mirror image;
FIG. 5 is a rear elevational view thereof; and
FIG. 6 is a bottom plan view thereof.
Kudirka, Paul J., Goodrich, Gordon W.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| May 21 1986 | GOODRICH, GORDON W | BISSELL INC , A CORP OF MICHIGAN | ASSIGNMENT OF ASSIGNORS INTEREST | 004573 | /0650 | |
| May 21 1986 | KUDIRKA, PAUL J | BISSELL INC , A CORP OF MICHIGAN | ASSIGNMENT OF ASSIGNORS INTEREST | 004573 | /0650 | |
| May 27 1986 | Amway Corporation | (assignment on the face of the patent) | / | |||
| Jul 03 1986 | BISSELL INC | AMWAY CORPORATION, A CORP OF MI | ASSIGNMENT OF ASSIGNORS INTEREST | 004588 | /0004 |
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