Patent
   D257036
Priority
Dec 26 1978
Filed
Dec 26 1978
Issued
Sep 23 1980
Expiry
Sep 23 1994
Assg.orig
Entity
unknown
2
2
n/a
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

Patent Priority Assignee Title
D463366, Jun 27 2001 Tower Manufacturing Corporation Straight blade safety plug
D879719, Oct 10 2019 QINGDAO BAOBIN ELECTRONICS TECHNOLOGY CO ,LTD Electric cable socket
Patent Priority Assignee Title
198529,
237889,
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Dec 26 1978General Electric Company(assignment on the face of the patent)
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