(under subclass 100) Subject matter wherein either: (a) the box material includes structure which has been added to it at a selected location to strengthen it (e.g., strand of wire or cord, slat of stiff material such as wood or plastic) or (b) a brace extends between wall panels to prevent bulging.
(1) Note. A reinforced structure formed by mere folding or multiple thicknesses of box material is not considered to be a separate element for this subclass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
166, for a separate reinforcing element located within the fold of a downwardly extending panel attached to a sidewall. [figure]
