(under subclass 648.1) Structure including distinct members defining terminal edges, or a terminal corner that delimits an area within the enclosed space in two directions, i.e., a complete frame surrounding an area.
SEE OR SEARCH THIS CLASS, SUBCLASS:
581, for an edge-to-edge connected openwork panel.
631, for a corner formed by laminate with bent facing section.
649.3+, for a caged lattice which reinforces settable material.
651.04, for line-pole, line-tower, etc., having a perimeter-surrounding element.
660+, for an openwork planar fabric or lattice which is indefinite as to the length or the width.
690+, for a construction formed by side-by-side terminal edge shafts connected by cross members which construction is limited in depth only by the terminal shafts (e.g., a truss or ladder-like openwork). SEE OR SEARCH CLASS
428, Stock Material or Miscellaneous Articles,
578, for a metallic panel having a nonrectangular perimeter.
