US PATENT SUBCLASS 252 / 478
X-RAY OR NEUTRON SHIELD
Current as of: June, 1999
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DEFINITION
Classification: 252/478
Compositions specialized and designed to prevent the passage of X-radiation or other wave energy, outside the visible spectrum, such as is released in nuclear transformation.
SEE OR SEARCH THIS CLASS, SUBCLASS:
300, for compositions specialized for use as optical filter compositions including those which filter ray energy outside the visible spectrum.
SEE OR SEARCH CLASS
250, Radiant Energy,
515.1+, for radiation shields including X-ray shields.
378, X-Ray or Gamma Ray Systems or Devices,
145+, for beam control devices.
420, Alloys or Metallic Compositions, 122.1+, for alloys which are opaque to X-radiation or neutrons.
424, Drug, Bio-Affecting and Body Treating Compositions,
4+, for an X- ray contrast composition to be used in an animal body and subclasses 59+ for a sun or radiation screening composition to be applied to a living body, e.g., sun tanning lotion, etc.
520, Synthetic Resins or Natural Rubbers, appropriate subclasses, particularly Class 523,
136, for a composition containing a synthetic resin or natural rubber which is resistant to, yet does not absorb, radioactive materials or cathode rays or to processes of preparing said composition.
