(under the class definition) Compositions s which contain a substance which is spontaneously radioactive and processes pertaining to same.
SEE OR SEARCH THIS CLASS, SUBCLASS:
505, and 517, for conductive or emissive compositions containing radioactive matter and electrical devices defined only in terms of their composition.
SEE OR SEARCH CLASS
75, Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures,
84+, for processes of preparing radioactive and actinide series metals; subclass 235 for a composition having a continuous phase of free metal made by consolidating metal particles and having an oxide of aluminum, a Group IIA, IIIB or Group IVB metal; and subclass 84.1 for such composition having a base of a transition metal.
148, Metal Treatment,
560, for processes of significant heating of solid or semi-solid actinide or trans-actinide metal to modify or maintain the internal physical structure (i.e., microstructure) or chemical property of the metal.
164, Metal Founding,
450.2, for a metal casting apparatus having control means influenced by a radioactive sensor and which may include a radioactive source.
250, Radiant Energy,
303+, for radioactive tracer processes; subclass 308 for the inspection of solids or liquids by radioactive charged particles; subclass 379 for electric signalling devices including a radioactive gas or gas-borne radioactive particles or a radioactive source; subclass 384 for gas discharge signalling devices responsive to radiation from radioactive sources; subclasses 462.1+ for self-luminous articles; and subclasses 493.1+ for radiant energy generation and sources, including subclasses 496.1+ for contained radioactive sources.
313, Electric Lamp and Discharge Devices,
54, for electrical lamps and electric space discharge devices (e.g., radio tubes) which include a radioactive substance as a part thereof.
376, Induced Nuclear Reactions: Processes, Systems, and Elements, appropriate subclasses for the production of radioactive compositions by irradiation.
422, Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing,
159, for apparatus for radioactive reactant or product.
423, Chemistry of Inorganic Compounds,
2+, and 249+ for radioactive compounds, per se, including manufacturing processes involving a chemical reaction. 424, Drug, Bio-Affecting and Body Treating Compositions,
1.11+, for class defined compositions and methods comprising a radionuclide or intended radionuclide (e.g., in vivo testing).
427, Coating Processes,
5, and 6 for coated articles containing a radioactive material.
428, Stock Material or Miscellaneous Articles,
411+, for composite web or sheet characterized merely by composition, one of which layers may contain radioactive
material.
976, Nuclear Technology,
D277+, Dig. 375+, and Dig. 403+, for an alternative search based on a modification of the European Patent Office Classification.
