Patent ID: 7478966

Claim:
A file comprising: a cover provided with at least a front cover portion, a back cover portion, a spine and coupling means provided on one of the cover portions or the spine for fastening an arch to the cover after it has been injection molded, said coupling means being co-injection molded in the file, wherein the front cover, the back cover and the spine are manufactured in one piece from plastic, and include hinges being co-formed therebetween for connecting the covers with the spine, and wherein the coupling means comprise clamping means, with which the arch can be fixed to the cover, said clamping means including a flange spaced from one of the cover portions and/or the spine and a recess formed in said flange; and an arch coupled to said coupling means for fastening paper in said cover, said arch including a substantially planar base plate having an edge and at least one leg extending upwardly from said base plate, said base plate edge being retained under said clamping means flange and said upwardly extending leg being received in said flange recess, wherein said arch is snap-fit coupled to said coupling means without having to fold over any part of said coupling means to establish said snap-fit coupling between said arch and said coupling means.