(under the class definition) Subject matter including (a) a process or tool defined thereby including forming pores or voids in the finished article or (b) an abrading tool composition including one or more materials which will form pores or voids therein.
SEE OR SEARCH CLASS
106, Compositions: Coating or Plastic, particularly
122, 601+, and 672+ for a pore forming composition.
366, Agitating,
10+, for a process of incorporating gas into mortar.
428, Stock Material or Miscellaneous Articles,
550, for composite metallic stock comprising metal particles, at least one component of which has pores; subclass 566 for composite metallic stock having a component in which there are interconnected, unfilled pores; and subclass 613 for nonparticulate metallic material which is, at least in part, porous.
501, Compositions: Ceramic,
39, and 80+ for a pore forming composition.
521, Synthetic Resins or Natural Rubbers,
50+, for a process of forming pores in synthetic resin or natural rubber.
