.~.~ With hills or peaks separated by valleys (e.g., egg crate type)
DEFINITION
Classification: 5/736
With hills or peaks separated by valleys (e.g., egg crate type):
(under subclass 731) Nonplanar mattress top surface in which
at least a portion of the user contacting face has a pattern of protuberances totally surrounded on all sides by lowered surfaces, defining a surface that resembles an egg crate.
(1) Note. Hills or peaks may have rounded or flat tops and are often made by a foam convoluter.
(2) Note. Excluded from this subclass are mattresses that have surfaces in which raised portions are separated by closely spaced, parallel, lateral, or longitudinal (but not both lateral and longitudinal) grooves or slits, to thereby provide an undulating surface.
SEE OR SEARCH THIS CLASS, SUBCLASS:
691, for mattresses or pads, removably attachable to the top of another mattress, that may provide an egg-crate-type supporting surface.
724, for mattresses providing ventilation, that may provide an egg-crate-type surface.
731, for surfaces in which raised portions are separated by lateral or longitudinal (but not both) grooves or slits, to thereby provide an undulating surface. 944, for devices that have upstanding, firm massaging projections on their top user supporting surface.
