Window envelope for selectively exposing and concealing mailing addresses on an enclosure

Claim 1

IN COMBINATION, AN ENCLOSURE HAVING DIFFERENT ADDRESSES LOACTED ON THE ENCLOSURE IN SPACED APART SUBSTANTIALLY HORIZONTAL ALIGNMENT, ONE OR THE OTHER OF WHICH MAY BE SELECTED FOR MAILING ADDRESS, AND AN ENVELOPE FOR SAID ENCLOSURE, SAID ENVELOPE INCLUDING A RECTANGULAR FRONT PANEL HAVING SPACED WINDOWS IN REGISTRY WITH THE ADDRESSES ON THE ENCLOSURE, A RECTANGULAR BACK PANEL CONNECTED WITH ONE EDGE OF THE FRONT PANEL BY A FOLD ALONG THE BOTTOM EDGES OF ONE A CLOSURE FLAP CONNECTED WITH THE UPPER EDGE OF ONE PANEL BY A FOLD TO FOLD OVER THE CORRESPONDING UPPER EDGE OF THE OTHER PANEL TO CLOSE AN INSERT OPENING TO A POCKET BETWEEN SAID PANELS, SIDE FLAPS CONNECTED BY FOLDS WITH SIDE END EDGES OF ONE PANEL AND EXTENDING LOOSELY BETWEEN SAID PANELS AND ACROSS THE WINDOWS TO DIVIDE THE POCKETS OF THE ENVELOPE INTO FRONT AND BACK COMPARTMENTS OF NEAR THE SAME SIZE ON THE RESPECTIVE SIDES OF THE FLAPS AND AT BOTH ENDS OF THE POCKET, AND ADHESIVE CONNECTING SAID OTHER PANEL WITH THE SIDE FLAPS IMMEDIATELY ADJACENT THE FOLDS THEREOF TO COMPLETE THE POCKET BETWEEN SAID PANELS, SAID SIDE FLAPS HAVING INNER TERMINAL EDGES SPACED SLIGHTLY APART TO PROVIDE A SLOT CONNECTING THE FRONT COMPARTMENTS AT ONE SIDE END WITH THE BACK COMPARTMENTS AT THE OTHER SIDE END, SO THAT WHEN THE SIDE END OF THE ENCLOSURE HAVING THE ADDRESS SELECTED FOR THE MAILING ADDRESS IS INSERTED IN A FRONT COMPARTMENT AT THAT END OF THE POCKET TO EXPOSE SAID SELECTED ADDRESS THROUGH THE WINDOW AT THAT END OF THE FRONT PANEL, THE MIDPOINT OF THE ENCLOSURE IS PASSED THROUGH SAID SLOT TO BRING THE OPPOSITE SIDE END HAVING THE OTHER ADDRESS INTO THE BACK COMPARTMENT AT THE OTHER SIDE END OF THE ENVELOPE TO CONCEAL THE ADDRESS THEREON BY MEANS OF THE SIDE FLAP DIVIDING THAT END OF THE POCKET.