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The ornamental design for a heavy duty electric plug, as shown and described. |
FIG. 1 is an enlarged perspective view of a heavy duty electric plug illustrating our new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a side elevational view thereof;
FIG. 5 is an elevational view of the side opposite that shown in FIG. 4;
FIG. 6 is a bottom plan view thereof;
FIG. 7 is a top plan view thereof;
FIG. 8 is an enlarged perspective view of an alternate embodiment of the heavy duty electric plug differing in size and third prong;
FIG. 9 is a front elevational view thereof;
FIG. 10 is a rear elevational view thereof;
FIG. 11 is a side elevational view thereof;
FIG. 12 is an elevational view of the side opposite that of FIG. 11;
FIG. 13 is a top plan view thereof; and
FIG. 14 is a bottom plan view thereof.
The surface design shown completely in FIGS. 1 and 8 is incompletely shown in FIGS. 2-5, 7 and 9-13 for ease of illustration and is understood to repeat over the area left blank.
The portions of FIG. 1 and FIG. 8 shown in broken lines represent an electric cord and they do not form a part of the claimed design.
Smith, Donald F., Mellyn, Lawrence P., Ostrelich, Michael
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D879719, | Oct 10 2019 | QINGDAO BAOBIN ELECTRONICS TECHNOLOGY CO ,LTD | Electric cable socket |
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Dec 26 1978 | General Electric Company | (assignment on the face of the patent) | / |
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