Ventilated or permitting substantial air or liquid passage:
(under subclass 652) Support for body or part having an aperture or channel permitting the circulation of fluids (such as ambient air or liquids) between the interior and the exterior of the support, to enhance the comfort of a user.
(1) Note. The aperture or channel means in the support must permit substantial movement in and out of the support. The use of a porous cover on a support, or the use of a conventional porous foam as the filler, that inherently permit movement of air through their pores, is not sufficient for classification in this subclass.
(2) Note. Excluded from this subclass are supports with slits, grooves, or cutouts on a support surface provided for localized altering of the firmness of the support.
(3) Note. This subclass includes cushions that permit the draining of liquids therethrough, of the type used outdoors.
SEE OR SEARCH THIS CLASS, SUBCLASS:
704, for mattresses in which the handle means are provided with means providing ventilation.
717, for spring mattresses that have edge or border features that may include ventilating means. 724+, for ventilated mattresses.
730, and 736, for channels, grooves, peaks, or valleys on a mattress top surface that may inherently provide a ventilated user supporting top surface.
SEE OR SEARCH CLASS
297, Chairs and Seats,
180.1+, and 452.42 for ventilated chairs and seats.
