(under subclass 690) Mattress including a dipolar conductive material such as a permanent magnet or an electromagnet.
(1) Note. The presence of a magnet that is part of a motor associated with the mattress is not sufficient to classify in this subclass.
(2) Note. The magnets passively associated with the mattress in this subclass allegedly provide "health benefits" to a user resting on the mattress, but are not "actively" used in treating a diseased patient.