(under subclass 156) Product, wherein a nonplanar surface of a variable thickness layer comes into contact with an adjacent layer (or a component thereof) in such a manner as to define therebetween individual or interconnected three-dimensional zones, either separate or interconnected.
(1) Note. The spaces may be empty or occupied, in whole or in part, by a filler material.
SEE OR SEARCH THIS CLASS, SUBCLASS:
158, for a product in which the interlaminar spaces take the form of cells* in a foamed material.
178, for a web or sheet embodying a component of a nonplanar uniform-thickness material which forms or cooperates with an adjacent component to form cells*.
182+, and especially subclass 186 for web or sheet embodying a nonplanar uniform-thickness component of sinuous wave form secured to an adjacent planar component so as to provide spaces therebetween.
188, for a longitudinal or transverse cavity* or cell* within a layer. SEE OR SEARCH CLASS
5, Beds,
449+, and particularly subclasses 455+ for a compartmented
