Patent ID: 6564994
Filing Date: 2003-05-20
Classification: B65D,Y10S

Abstract:
An expandable envelope construction comprisinga rectangular front panel being smooth and uninterrupted with score lines; a pair of side flaps at opposite sides of said front panel, each said flap being folded over said front panel along a vertical fold line therebetween and including a vertically disposed score line spaced from said fold line; a back panel extending from and folded over said front panel along a horizontal fold line therebetween, said back panel being secured to said flaps between said score lines thereof to define a pocket and having a horizontally disposed score line spaced from said fold line between said front and back panels; and a closure flap extending from said front panel along a horizontal fold line therebetween for folding over said back panel to close said pocket, said closure flap having a horizontally disposed score line spaced from said fold line between said closure flap and said front panel whereby upon insertion of materials into said pocket, said panels are expandable from each other about said told lines thereof to enlarge said pocket.