(under subclass 341) Product or process wherein one element is a coating or covering for another element, the coating or covering serving to soften, bond, bind, or enhance filtration.
SEE OR SEARCH THIS CLASS, SUBCLASS:
355, for tobacco compositions in which the tobacco fibers carry an adhesive coating.
SEE OR SEARCH CLASS
55, Gas Separation,
524, for gas separating media of general utility comprising a coating impregnant or bonding agent.
427, Coating Processes, appropriate subclasses.
428, Stock Material or Miscellaneous Articles, appropriate subclasses for a coated or impregnated strand or fiber. 501, Compositions: Ceramic, appropriate subclasses for ceramic compositions.
