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Class Information
Number: D23/357
Name: Environmental heating and cooling; fluid handling and sanitary equipment > Heating or cooling > Air treatment > Humidifier > Wall or furnace mount
Description:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| D458356 |
Furnace mounted humidifier |
Jun. 4, 2002 |
| D342989 |
Humidifier |
Jan. 4, 1994 |
| D322122 |
Humidifier casing |
Dec. 3, 1991 |
| D320072 |
Humidifier |
Sep. 17, 1991 |
| D280660 |
Humidifier |
Sep. 17, 1985 |
| D265852 |
Room humidifier |
Aug. 17, 1982 |
| D261422 |
Humidifier for a hot air furnace or the like |
Oct. 20, 1981 |
| D261421 |
Humidifier for a hot air furnace or the like |
Oct. 20, 1981 |
| D259207 |
Facial sauna housing |
May. 12, 1981 |
| D255927 |
Room humidifier |
Jul. 15, 1980 |
| D253846 |
By-pass humidifier |
Jan. 1, 1980 |
| D253845 |
By-pass humidifier |
Jan. 1, 1980 |
| 4003967 |
Electric heating and humidifying apparatus |
Jan. 18, 1977 |
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