(under subclass 43) Apparatus wherein the wall of the member is claimed in terms of the chemical, mechanical, metallurgical, or physical characteristics or properties of the substance or substances of which it is formed.
(1) Note. Exemplary of the art of this subclass is the claiming of the wall in terms of (a) the composition of the material utilized for making it, (b) its strengthening by the use of reinforcing elements or by laminating, or (c) its increased resistance to corrosion or wear by the provision of a coating (e.g., a plating) or a lining (e.g., a film).
SEE OR SEARCH THIS CLASS, SUBCLASS:
12, for a separator which includes means or structure for promoting safety, and see the reference to this subclass (81) appearing in (1) Note thereof.
