(under subclass 262) Subject matter, wherein the contact material constitutes three or more layers. Each adjacent layer of material is different from each other layer, however, every other layer of material could possibly be similar to each other (e.g., layers 1 and 3, layers 2 and 4, or layers 3 and 5, etc.).
(1) Note. The support to which the layers are attached does not constitute a layer.
(2) Note. For purposes of classification in this subclass, the term "layer" is meant to include sheet material or coating material, either material being adhesively bonded to a support (e.g., weld, resin, cold flow, etc.), or to another layer as indicated in subclasses 268 and 269.
SEE OR SEARCH CLASS
428, Stock Material or Miscellaneous Articles,
617, for composite metallic stock having more than two components and deflectable by a temperature change, and subclass 635 for composite metallic stock having four or more distinct components with alternate recurrence of each type component.
