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The ornamental design for an aquarium air pump, substantially as shown. |
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FIG. 1 is a perspective view taken from the front and left side of an aquarium air pump, showing our new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is a right side elevational view thereof; and
FIG. 5 is a rear elevational view thereof.
Levin, Monte L., Willinger, Allan H., Willinger, Harding W.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Jul 19 1976 | WILLINGER, ALLAN H | WILLINGER BROS , INC | CORRECTED ASSIGNMENT | 006673 | /0430 | |
| Jul 19 1976 | WILLINGER, HARDING W | WILLINGER BROS , INC | CORRECTED ASSIGNMENT | 006673 | /0430 | |
| Jul 19 1976 | LEVIN, MONTE L | WILLINGER BROS , INC | CORRECTED ASSIGNMENT | 006673 | /0430 | |
| Jul 28 1976 | Willinger Bros., Inc. | (assignment on the face of the patent) | / |
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