Patent 7007615 was granted and assigned to Menasha Corporation on March, 2006 by the United States Patent and Trademark Office.
A collapsible shelf unit has a three-sided frame made of a single sheet of foldable material and separate shelves which are hinged to the sides and rear of the frame so that the shelf unit can be collapsed to a substantially flat state by folding the shelves up against the rear of the back and folding the sides inward.