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The ornamental design for a box fan, as shown and described. |
FIG. 1 is a front, top, and right side perspective view of a box fan showing my new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a right side elevational view thereof, the left side being a mirror image of that shown;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a top plan view thereof; and,
FIG. 6 is a bottom plan view thereof.
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Mar 22 1991 | COOK, ROBYNN M | TATUNG COMPANY OF AMERICA, INC , A CORP OF CA | ASSIGNMENT OF ASSIGNORS INTEREST | 005664 | /0278 | |
Apr 01 1991 | Tatung Company of America, Inc. | (assignment on the face of the patent) | / | |||
Apr 25 1994 | TATUNG COMPANY OF AMERICA, INC | SUNSTAR UNITED CORP | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 007036 | /0758 |
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