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Class Information
Number: D23/329
Name: Environmental heating and cooling; fluid handling and sanitary equipment > Heating or cooling > Furnace
Description:










Patents under this class:

Patent Number Title Of Patent Date Issued
D692542 Furnace cabinet panel Oct. 29, 2013
D683002 Furnace May. 21, 2013
D680206 Housing for heating burners Apr. 16, 2013
D659230 Portion of heat treat furnace May. 8, 2012
D659231 Heat treat furnace May. 8, 2012
D658279 Portion of heat transfer furnace Apr. 24, 2012
D653738 Furnace Feb. 7, 2012
D638529 Furnace May. 24, 2011
D633994 Furnace Mar. 8, 2011
D623280 Heating furnace having an ornamental cover plate Sep. 7, 2010
D619689 Heating furnace having an ornamental cover plate Jul. 13, 2010
D554243 Panel sections for an air handler door Oct. 30, 2007
D550338 Panel sections for an air handler door Sep. 4, 2007
D549809 Panel sections for an air handler door Aug. 28, 2007
D549808 Cover for a burner Aug. 28, 2007
D502254 Door panel for a residential gas furnace Feb. 22, 2005
D502253 Door panel for a residential gas furnace Feb. 22, 2005
D501544 Door panel for a residential gas furnace Feb. 1, 2005
D466597 Roller hearth reheat furnace tire Dec. 3, 2002
D421296 Burner Feb. 29, 2000
D407479 Support base Mar. 30, 1999
D382339 Arcuate cast refractory and steel segment of an annealing furnace base Aug. 12, 1997
D377391 Pellet hopper for a pellet-burning grill Jan. 14, 1997
D374072 Assembly of arcuate cast refractory and steel segments of an annealing furnace base Sep. 24, 1996
D374073 Cast refractory side segment of an annealing furnace base Sep. 24, 1996
D371837 Cast refractory corner segment of an annealing furnace base Jul. 16, 1996
D371836 Assembly of cast refractory segments of an annealing furnace base Jul. 16, 1996
D360258 Heat exchanger for fuel fired furnaces Jul. 11, 1995
D357063 Furnace enclosure with double doors unit for a firebox Apr. 4, 1995
D350189 Front and side panels of a firebox with automatic feed hopper Aug. 30, 1994
D345203 Double door unit for a firebox Mar. 15, 1994
D300772 Friction furnace Apr. 18, 1989
D297045 Friction furnace Aug. 2, 1988
D292228 Down discharge heating and cooling unit Oct. 6, 1987
D270370 Firebox Aug. 30, 1983
D266106 Furnace Sep. 7, 1982
D252526 Furnace Jul. 31, 1979
D251438 Wood burning furnace Mar. 27, 1979











 
 
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