US PATENT SUBCLASS 252 / 301.4 R
INORGANIC LUMINESCENT COMPOSITIONS

Current as of: June, 1999
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252 /   HD   COMPOSITIONS

301.4 RINORGANIC LUMINESCENT COMPOSITIONS {6}
301.5  DF  .~> Tungsten containing
301.6 R  DF  .~> Zinc or cadmium containing {3}
301.4 S  DF  .~> Sulfur containing
301.4 P  DF  .~> Phosphorus containing
301.4 F  DF  .~> Group IV element containing
301.4 H  DF  .~> Compositions containing halogen; e.g., halides and oxyhalides

Unofficial Alpha Subclasses: R S P F H

DEFINITION

Classification: 252/301.4

INORGANIC LUMINESCENT COMPOSITIONS:

(under the class definition) Compositions which are constituted entirely of inorganic material and contain a component having the property of emitting light or analogous rays as a result of irradiation by wave energy radiated by some other source.

(1) Note. This and the indented subclasses also include compositions in the preparation of which a temporary organic vehicle, binder or adjuvant is employed and which is removed or destroyed in the course thereof.

SEE OR SEARCH THIS CLASS, SUBCLASS:

301.16, and 301.36, for luminescent compositions containing organic material which may include inorganic luminescent material; and see the search notes therein for itemization of other possibly pertinent fields of search.

SEE OR SEARCH CLASS

423, Chemistry of Inorganic Compounds, appropriate subclasses, for inorganic luminescent compounds, per se.