(under the class definition) Products or processes in which the product is carbon or a compound thereof.
SEE OR SEARCH CLASS
75, Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures,
236+, for consolidated metal power compositions containing a carbide.
260, Chemistry of Carbon Compounds, for organic compounds and processes of making such compounds, meeting the structural requirements set out in the class definition thereof; see also (1) Note in
226, of this class 423. 419, Power Metallurgy Processes,
14+, for processes of making articles from particulate material including a metal and a carbide compound comprising pressure and heat.
585, Chemistry of Hydrocarbon, appropriate subclasses for compounds containing carbon and hydrogen only, methods for their synthesis and purification, and certain compositions containing hydrocarbons.
588, Hazardous or Toxic Waste Destruction or Containment, appropriate subclasses for the destruction or containment of hazardous or toxic waste containing carbon, oxygen, sulfur, and metals.
