Expandable pouch envelope

Claim 1

AN EXPANSION ENVELOPE FOR INSERTION BETWEEN THE PAGES OF A MAGAZINE, SAID EXPANSION ENVELOPE INCLUDING A FLY HAVING A SUBSTANTIALLY RECTANGULAR PANEL DETACHABLY EXTENDING THEREFROM IN PLANE WITH THE FLY, AN OVERLYING PANEL OF CORRESPONDING SIZE AND SHAPE AND HAVING A SIDE EDGE OPPOSITE THE FLY AND A BOTTOM EDGE CONNECTED WITH CORRESPONDING EDGES OF THE FIRST NAMED PANEL BY A SINGLE SIDE AND A SINGLE BOTTOM FOLD, RESPECTIVELY, A SIDE FLAP IN CONNECTION WITH THE OTHER SIDE EDGE OF THE OVERLYING PANEL BY A SINGLE INTEGRAL FOLD AND TURNED INWARDLY FROM SAID FLY TOLIE FLATLY BETWEEN SAID PANELS, SAID SIDE FLAP HAVING A SCORE PARALLEL WITH SAID SINGLE INTEGRAL FOLD AND SPACED THEREFROM TO DIVIDE SAID SIDE FLAP INTO AN EXPANSION SECTIONS SECTIONS AND A TERMINAL SECTION, AN ADHESIVE SPACED INWARDLY FROM SAID FLY A DISTANCE CORRESPONDING WITH THE SPACING OF THE TERMINAL SECTION TO SECURE SAID TERMINAL SECTION TO SAID FIRST NAMED PANEL TO PROVIDE AN EXPANDABLE POUCH WHEN THE FIRST NAMED PANEL IS DETACHED FROM THE FLY, AND A GUMMED CLOSURE FLAP EXTENDING FROM THE EDGE OF ONE OF THE PANELS THAT IS OPPOSITE THE BOTTOM FOLD AND ADAPTED TO BE SEALED TO THE OTHER PANEL, SAID POUCH BEING ADAPTED TO EXPAND UPON INSERTION OF AN ARTICLE BETWEEN SAID PANELS BY HINGING OF THE SIDE FLAP ON ITS FOLD AND HINGING OF SAID SECTIONS ALONG THE SCORE TO COMPENSATE FOR SAID SINGLE SIDE FOLD.