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Class Information
Number: 239/42
Name: Fluid sprinkling, spraying, and diffusing > Slow diffusers > Gravity flow of liquid from supply holder > Barometric flow to secondary holder > Porous distributor to atmosphere
Description: Apparatus having a foraminous or liquid permeable element exposed to the ambient atmosphere and in the auxiliary reservoir.

Patents under this class:

Patent Number Title Of Patent Date Issued
8070139 Air treatment device having an audible indicator Dec. 6, 2011
7926735 Fragrance package, dispenser, and method Apr. 19, 2011
7681806 Vapor dispersing device and method Mar. 23, 2010
7111794 Static air freshener Sep. 26, 2006
7051949 Volatilizing apparatus May. 30, 2006
7025283 Air freshener for motor vehicles Apr. 11, 2006
6994270 Semi-enclosed gel delivery device Feb. 7, 2006
6896196 Evaporative container for volatile substances May. 24, 2005
5271560 Drip dispenser Dec. 21, 1993
5172859 Liquid diffuser device Dec. 22, 1992
4477414 Evaporative container Oct. 16, 1984

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