Patent
   D254388
Priority
Feb 21 1978
Filed
Feb 21 1978
Issued
Mar 04 1980
Expiry
Mar 04 1994
Assg.orig
Entity
unknown
10
3
n/a
The ornamental design for a combined grate and fireplace heat exchanger, as shown and described.

FIG. 1 is a front perspective view of a combined grate and fireplace heat exchanger showing our design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a left side elevational view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a front perspective view of a second embodiment thereof;

FIG. 9 is a top plan view thereof;

FIG. 10 is a front elevational view thereof;

FIG. 11 is a rear elevational view thereof;

FIG. 12 is a left side elevational view thereof;

FIG. 13 is a right side elevational view thereof; and

FIG. 14 is a bottom plan view thereof.

Chesnut, Amos E., Parrigin, Albert J.

Patent Priority Assignee Title
D258756, Dec 26 1978 Woodcutters Manufacturing, Inc. Manifold for a forced air fireplace furnace
D259585, Dec 07 1978 Pacific Fireplace Furnishings, Inc. Fireplace heat exchanger
D259657, Dec 07 1978 Pacific Fireplace Furnishings, Inc. Forced air fireplace furnace
D260925, Dec 07 1978 Pacific Fireplace Furnishings, Inc. Casting for fireplace heat exchanger
D261930, Oct 25 1979 Firemaster Systems, Inc. Fireplace grate and blower tube surround assembly with elevated water heating heat exchanger tubes and baffle structure
D265046, Jun 30 1980 Fireplace grate and blower tube surround assembly
D269803, Jan 02 1981 Fireplace grate
D301369, Aug 31 1987 WILKENING, GARY D , R R , WALKER, MN 56484 Fireplace grate
D635657, Mar 05 2010 Earth's Flame, Inc. Fireplace grate
D744712, Aug 09 2013 IHS Global Design Pty Ltd Service trolley
Patent Priority Assignee Title
4114590, Oct 13 1976 FRAHM, HARLAN C , BURLINGTON, WI Air feed fireplace grate
240536,
242542,
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Feb 21 1978Arvin Industries, Inc.(assignment on the face of the patent)
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