(under subclass 610.1) Process including coating resistive material onto a base.
(1) Note. The term "coating" is employed herein to mean both surface coating and impregnating. For classification in this subclass, the coating material must be conductive and be intended to modify an electric current as a resistor. Forming a housing about an otherwise complete resistor by coating is classified in subclass 613, whether the coating material is insulative or conductive, and even though the conductive coating material, where used, functions as an electrostatic shield.
(2) Note. A method of coating on or with resistive material is, per se, classified in Class 427, Coating Processes, subclasses 101+. Class 29, subclass 620 is residual and includes the application of the resistive material by coating plus any additional process or step, not necessary to coating, except where the coating and additional process or
step is provided for in another class. For example, this subclass includes coating plus metal working or coating plus assembly, but does not include coating plus molding, which is in Class 264, Plastic and Nonmetallic Article Shaping or Treating: Processes, subclasses 129+.
SEE OR SEARCH THIS CLASS, SUBCLASS:
458+, and 460, for a process of mechanical manufacture generally including coating.
613+, for forming a protective housing or envelope by a coating step. See also (1) Note, above.
SEE OR SEARCH CLASS 338, Electrical Resistors,
308+, for resistor structure wherein the element is coated on a base.
427, Coating Processes,
101+, for a method of making a resistor by coating, and see (2) Note, above.
