Patent ID: 6796428
Filing Date: 2004-09-28
Classification: A45C,B42F,Y10S

Abstract:
An expanding envelope with built-in dividers comprising:an expansive base sheet formed of a resilient stiff material delineated into a front cover panel, a rear cover panel, collapsible side panels on opposite sides of said front and rear cover panels, and a narrow spine panel located between said front and rear cover panels and delineated therefrom by a pair of base sheet bottom folds, and said spine panel is divided transversely by a center fold into front and rear collapsible sections, and an expansive divider sheet formed of a resilient, stiff material delineated into front and rear divider panels and a binder panel located between said front and rear divider panels and said binder panel is divided transversely by a center fold into front and rear collapsible sections, and wherein said front and rear collapsible sections of said binder panel are respectively secured to said front and rear collapsible sections of said spine panel, and said collapsible side panels are both divided by center folds at which they are collapsible, and said side panels secure said front and rear cover panels to each other with said front and rear divider panels located therebetween and with said center folds of said side panels extending substantially parallel to said front and rear cover panels.