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Class Information
Number: D23/370
Name: Environmental heating and cooling; fluid handling and sanitary equipment > Heating or cooling > Air treatment > Fan or ventilator
Description:










Sub-classes under this class:

Class Number Class Name Patents
D23/384 Bellows 7
D23/377 Blade unit rotates on vertical axis 723
D23/383 Blower 81
D23/371 Exhaust type 107
D23/378 Floor type on vertically elongated stand 146
D23/380 Plural impeller units, e.g., side by side, etc. 35
D23/381 Wire protective grille 117
D23/379 With exposed blade 413


Patents under this class:
1 2 3 4 5 6 7 8

Patent Number Title Of Patent Date Issued
D672023 Fan heater Dec. 4, 2012
D665894 Housing for a fan motor Aug. 21, 2012
D660952 Electric fan May. 29, 2012
D654997 Fan Feb. 28, 2012
D654920 Board of an electronic device Feb. 28, 2012
D645133 Triangular diffuser ring for a bladeless air circulator Sep. 13, 2011
D644726 Triangular diffuser ring for a bladeless air circulator Sep. 6, 2011
D644315 Fan Aug. 30, 2011
D643916 Fan Aug. 23, 2011
D639924 Axial fan Jun. 14, 2011
7941936 Garment drying apparatus May. 17, 2011
D638114 Fan May. 17, 2011
D637706 Axial-flow blower May. 10, 2011
D637276 Fan May. 3, 2011
D636863 Electric fan Apr. 26, 2011
D636862 Cooling tower fan motor Apr. 26, 2011
D636861 Motor Apr. 26, 2011
D635656 Fan Apr. 5, 2011
D634833 Cooling fan Mar. 22, 2011
D633999 Teardrop shaped diffuser ring Mar. 8, 2011
D633998 Bladeless air circulator Mar. 8, 2011
D633997 Diamond shaped diffuser ring Mar. 8, 2011
D631148 Destratification fan Jan. 18, 2011
D625799 Fan housing Oct. 19, 2010
D625402 Centrifugal fan Oct. 12, 2010
D619697 Axial fan Jul. 13, 2010
D614280 Fan Apr. 20, 2010
D610244 Vehicle drying apparatus Feb. 16, 2010
D609797 Fan Feb. 9, 2010
D609323 Electric fan Feb. 2, 2010
D605748 Fan Dec. 8, 2009
D603951 Fan with an outflow baffle Nov. 10, 2009
D602577 Fan Oct. 20, 2009
D602142 Axial fan with double impellers rotating in mutually opposite directions Oct. 13, 2009
D602143 Fan Oct. 13, 2009
D602144 Fan Oct. 13, 2009
D601239 Electric fan Sep. 29, 2009
D600338 Side panel fan for a desktop computer case Sep. 15, 2009
D599457 Electric fans unit with shrouds and blades Sep. 1, 2009
D598532 Fan Aug. 18, 2009
D598089 Heat dissipating fan Aug. 11, 2009
D595399 Heat dissipating fan Jun. 30, 2009
D594955 Centrifugal blower fan Jun. 23, 2009
D593192 Ventilating fan May. 26, 2009
D587796 Ventilation unit Mar. 3, 2009
D587797 Exhaust vent cover Mar. 3, 2009
D584392 Centrifugal blower fan Jan. 6, 2009
D584393 Ventilating fan Jan. 6, 2009
D584394 Ventilating fan Jan. 6, 2009
D579096 Housing for an inline vent fan Oct. 21, 2008

1 2 3 4 5 6 7 8










 
 
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