Patent ID: 8414300
Filing Date: 2013-04-09
Classification: G09B

Abstract:
1. A foldable product formed from a sheet of paper, comprising: a sheet of paper adapted to be folded and unfolded repeatedly during use between a single predetermined folded configuration and a predetermined unfolded configuration in which the sheet lies substantially flat; the sheet bears a predetermined pattern of fold lines defining the lines along which the product is to be folded; the fold lines are partly provided by creases and partly by lines of perforations; the sheet comprises two principal portions which are closed one on to the other by a closing movement about a principal axis of the sheet in the manner of closing the covers of a book; the fold lines of the sheet define: creased portions of each respective principal outward fold and creased portions of each respective principal inward fold meet at a central intersection of creased portions located at the generally central point of the sheet; and perforated portions of the principal outward fold, the edge inward fold, and the two edge outward folds at the distal end of each of the principal outward folds form an intersection of perforated portions, wherein the edge inward fold includes a middle creased portion extending along a middle portion of the edge inward fold between the perforated portion of the edge inward fold and another perforated portion of the edge inward fold.