(under subclass 202.1) Subject matter relating to either (1) the provision of markings on the surface of the artificial tooth by which is may be identified, or (2) the hue or relative lightness of an artificial tooth to tooth portion.
SEE OR SEARCH THIS CLASS, SUBCLASS:
26, for a tooth shade or hue selection guide.
199.1, for methods and compositions for obtaining desired tinting or shading of denture bases.
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264, Plastic and Nonmetallic Article Shaping or Treating: Processes,
20, for shaping or treating a tooth and providing a color or tone differential across the member. Class 433 provides for patents claiming the tooth itself.