Patent 9533457 was granted and assigned to Keter Plastic on January, 2017 by the United States Patent and Trademark Office.
Provided is an injection molded panel having a top side and a bottom side. The panel is configured with at least an elastic portion, the elastic portion including a plurality of undulating deformable strands intersecting with one another at rigid connecting locations, the rigid connecting locations alternatingly extending at opposite sides of the panel at alternating top peaks and bottom peaks, the peaks defining together the respective top side and the bottom side.