Patent
   D256724
Priority
Aug 09 1976
Filed
Aug 09 1976
Issued
Sep 02 1980
Expiry
Sep 02 1994
Assg.orig
Entity
unknown
2
6
n/a
The ornamental design for a heat exchange grid for an electric heater, substantially as shown and described.

FIG. 1 is a perspective view of a heat exchange grid for an electric heater showing our new design;

FIG. 2 is a front elevational view, the rear elevation being a mirror image thereof;

FIG. 3 is an enlarged fragmentary sectional view, taken along line 3--3 of FIG. 2;

FIG. 4 is an enlarged fragmentary sectional view, taken along line 4--4 of FIG. 2;

FIG. 5 is an enlarged fragmentary sectional view, taken along line 5--5 of FIG. 2;

FIG. 6 is an enlarged fragmentary sectional view, taken along line 6--6 of FIG. 2.

Stover, John C., Boggs, Alben C.

Patent Priority Assignee Title
D304230, Oct 21 1987 Ceramic heating element
D530779, Apr 22 2004 Zalman Tech Co. Ltd Radiator for a water cooler
Patent Priority Assignee Title
2109279,
2455839,
2606274,
2839657,
3394387,
239118,
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Aug 09 1976Emerson Electric Co.(assignment on the face of the patent)
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