(under subclass 505.1) Subject matter comprising means to absorb radiant energy not elsewhere provided for.
SEE OR SEARCH CLASS
252, Compositions,
582+, for optical filter compositions which include compositions for filtering ray energy.
359, Optics: Systems (Including Communication) and Elements,
350+, for infrared or ultraviolet apparatus; and subclasses 885+ for optical filters.
376, Induced Nuclear Reactions: Processes, Systems, and Elements, appropriate subclasses for shield structures used as components of a nuclear reactor.
424, Drug, Bio-Affecting and Body Treating Compositions, 9.4+, for X-ray contrast compositions used in in vivo diagnosis or testing and subclasses 59+ for body treating
compositions for topical sun or radiation screening.
427, Coating Processes,
160, for coating processes wherein the coating has shielding properties.
428, Stock Material or Miscellaneous Articles, appropriate subclasses for a stock material product in the form of a single or plural layer web or sheet which may have the property of shielding against radiant energy and especially
432+, and 457+ for a nonstructural composite web or sheet including a layer of metal.
