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Class Information
Number: D23/371
Name: Environmental heating and cooling; fluid handling and sanitary equipment > Heating or cooling > Air treatment > Fan or ventilator > Exhaust type

Sub-classes under this class:

Class Number Class Name Patents
D23/372 Range or oven 144
D23/373 Roof or chimney 64

Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
D699831 Hood Feb. 18, 2014
D696392 Control panel for a ventilation hood Dec. 24, 2013
D694385 Hood Nov. 26, 2013
D687138 Ventilation hood Jul. 30, 2013
D681794 Exhaust fan with LED May. 7, 2013
D680213 Ventilator blade Apr. 16, 2013
D678994 Ventilating fan hood Mar. 26, 2013
D678497 Bath fan grill and lens cover Mar. 19, 2013
D677775 Ventilation hood Mar. 12, 2013
D676541 Computer fan Feb. 19, 2013
D659232 Hood May. 8, 2012
D654998 Grille Feb. 28, 2012
D653323 Grille Jan. 31, 2012
D651705 Vapor extraction hood Jan. 3, 2012
D643917 Vapor extraction hood Aug. 23, 2011
D632775 Cooling unit Feb. 15, 2011
D632380 Cooling unit Feb. 8, 2011
D620579 Cat box odor eliminator Jul. 27, 2010
D604403 Extractor hood Nov. 17, 2009
D601180 Exhaust opening panel for projector Sep. 29, 2009
D593193 Crawlspace door fan May. 26, 2009
D589133 Ventilation and air conditioning equipment unit Mar. 24, 2009
D581508 Ceiling recessed type ventilating fan Nov. 25, 2008
D578200 Hood for use when extracting gases/fumes Oct. 7, 2008
D577805 Grille Sep. 30, 2008
D575386 Grille Aug. 19, 2008
D575387 Grille Aug. 19, 2008
D574478 Ceiling recessed type ventilating fan Aug. 5, 2008
D573707 Arm for the extraction of gases/fumes Jul. 22, 2008
D570465 Ceiling recessed type ventilating fan Jun. 3, 2008
D566257 Exhaust system panel Apr. 8, 2008
D565717 Grille Apr. 1, 2008
D565716 Grille Apr. 1, 2008
D539893 Exhaust stack Apr. 3, 2007
D489805 Exhaust hood May. 11, 2004
D487505 Exhaust hood Mar. 9, 2004
D472645 Laboratory hood with clear panels on four sides Apr. 1, 2003
D464419 Suction hood Oct. 15, 2002
D464418 Air inlet/exhaust port Oct. 15, 2002
D463017 Extraction device for polluted gases Sep. 17, 2002
D462118 Toilet ventilator and ducting Aug. 27, 2002
D457616 Ceiling recessed type ventilating fan May. 21, 2002
D457232 Ceiling recessed type ventilating fan May. 14, 2002
D448839 Fume extractor Oct. 2, 2001
D445886 Exhaust switching unit Jul. 31, 2001
D444869 Exhaust fan Jul. 10, 2001
D426292 Air conditioner Jun. 6, 2000
D424678 Suction hood May. 9, 2000
D416315 Air conditioner Nov. 9, 1999
D409741 Ventilating fan May. 11, 1999

1 2 3

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