(under subclass 262) Subject matter, wherein the contact material constitutes two layers. Each layer material is different from the other layer.
(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,
615+, for a metallic composite defined in terms of the composition of its components, especially subclasses 616+ for bimetallic temperature-sensitive stock.
