Patent
   D248641
Priority
Oct 12 1976
Filed
Oct 12 1976
Issued
Jul 25 1978
Expiry
Jul 25 1992
Assg.orig
Entity
unknown
2
8
n/a
The ornamental design for an insulator for an open coil electric heating unit, substantially as shown.

FIG. 1 is a front elevational view of an insulator for an open coil electric heating unit, showing my new design;

FIG. 2 is a side elevational view thereof,

FIG. 3 is a front perspective view thereof, and

FIG. 4 is a rear perspective view thereof.

Thweatt, Jr., Carlisle

Patent Priority Assignee Title
4628189, Feb 11 1985 EMERSON ELECTRIC CO , 8000 WEST FORISSANT AVENUE, PO BOX 4100, ST LOUIS, MISSOURI 63136, A CORP OF MISSOURI Electric resistance heater
D253171, May 16 1977 Emerson Electric Co. Insulator for electric heating elements
Patent Priority Assignee Title
1698282,
2096582,
2490139,
2602130,
3610882,
3935376, Dec 18 1974 Du-Co Ceramics Company Ceramic insulator for supporting a ribbon-type heating element
226435,
59369,
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Oct 12 1976Emerson Electric Co.(assignment on the face of the patent)
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