(under subclass 196) Subject matter wherein the contact structure, or at least a part thereof, is of the preformed surface type, which is usually formed by depositing a metallic conducting material upon an insulating surface, by etching away part of a metal coated insulating surface, or by printing on a conductive layer, etc.
SEE OR SEARCH CLASS
156, Adhesive Bonding and Miscellaneous Chemical Manufacture, appropriate subclasses for making preformed circuits by surface bonding or especially
2+, for making a conductor attached to a sheet-like body for an etching operation.
174, Electricity: Conductors and Insulators,
250+, for other printed circuits.
204, Chemistry: Electrical and Wave Energy, appropriate subclasses for processes for electrochemically producing preformed articles or circuit structure, such as switches, contacts, etc. 361, Electricity: Electrical Systems and Devices,
748+, for structure of impedances and circuit components of the printed circuit type and subclasses 823+ for switch boards and analogous devices with printed terminals.
427, Coating Processes,
58+, for processes of coating, per se, wherein the product has utility as an electrical product.
439, Electrical Connectors,
17, for preformed panels with printed circuitry which include detachable connectors.
