US PATENT SUBCLASS 428 / 166
.~.~ Interlaminar spaces


Current as of: June, 1999
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428 /   HD   STOCK MATERIAL OR MISCELLANEOUS ARTICLES

98  DF  STRUCTURALLY DEFINED WEB OR SHEET (E.G., OVERALL DIMENSION, ETC.) {20}
156  DF  .~ Including variation in thickness {7}
166.~.~ Interlaminar spaces


DEFINITION

Classification: 428/166

(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

air mattress.