(under subclass 600) Subject matter in which a mattress or pad supporting structure, are specially adapted to collect solid or liquid human waste, or are provided with a bedpan or toilet means.
(1) Note. Patents in this subclass require a mattress or pad supporting structure, not merely a mattress or pad, per se, resting on a support structure.
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606, for invalid beds or surgical supports that are specially adapted to lead away liquids from a body supporting surface.
695, for mattresses adapted to be supported on conventional bedsteads that have a pocket adapted to receive a toilet receptacle.
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4, Baths, Closets, Sinks, and Spittoons, appropriate subclasses for toilet structures and bedpans, per se.
