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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 720
D23/383 Blower 76
D23/371 Exhaust type 103
D23/378 Floor type on vertically elongated stand 138
D23/380 Plural impeller units, e.g., side by side, etc. 33
D23/381 Wire protective grille 115
D23/379 With exposed blade 401


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

Patent Number Title Of Patent Date Issued
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
D602144 Fan Oct. 13, 2009
D602143 Fan Oct. 13, 2009
D602142 Axial fan with double impellers rotating in mutually opposite directions 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
D584394 Ventilating fan Jan. 6, 2009
D584392 Centrifugal blower fan Jan. 6, 2009
D584393 Ventilating fan Jan. 6, 2009
D579096 Housing for an inline vent fan Oct. 21, 2008
D578633 Vented hexagonal pattern panel Oct. 14, 2008
D577429 Cooling device Sep. 23, 2008
D575385 Diamond pattern panel Aug. 19, 2008
D574942 Vented diamond pattern panel Aug. 12, 2008
D570981 Fan module having a handle Jun. 10, 2008
D565165 Combined dual fan assembly and shroud Mar. 25, 2008
D565166 Combined dual fan assembly and shroud with spiderweb support Mar. 25, 2008
D565167 Fan Mar. 25, 2008
D561709 Fan Feb. 12, 2008
D561325 Centrifugal blower fan Feb. 5, 2008
D561324 Centrifugal blower fan Feb. 5, 2008
D561323 Centrifugal blower fan Feb. 5, 2008
D561322 Slim converter Feb. 5, 2008
D561321 Slim converter Feb. 5, 2008
D560622 Fan Jan. 29, 2008
D559374 Air blower Jan. 8, 2008
D558321 Fan module Dec. 25, 2007
D547853 Face of an air ventilation housing Jul. 31, 2007
D546435 Housing for an inline vent fan Jul. 10, 2007
D539408 Centrifugal fan Mar. 27, 2007
D538916 Refrigeratable air chiller for a fan Mar. 20, 2007
D534643 Window fan Jan. 2, 2007
D534266 Fan Dec. 26, 2006
D534267 Fan module Dec. 26, 2006
D532095 Combined fan assembly and shroud Nov. 14, 2006
D531716 Fan Nov. 7, 2006
D531296 Desk top supported fan Oct. 31, 2006
D524600 Convection cover for cooking appliance Jul. 11, 2006
D523130 Heat-dissipation fan housing Jun. 13, 2006

1 2 3 4 5 6 7










 
 
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