Cigarette package

Claim 1

A CIGARETTE PACKAGE COMPRISING A PLURALITY OF CIGARETTES GROUPED SIDE BY SIDE AND A UNITARY SHEET OF FOIL AND PAPER LAMINATE, COATED ON ITS FOIL SIDE WITH A HEAT SENSITIVE COATING, CONVOLUTELY WOUND ABOUT THE CIGARETTES TO FORM A TUBULAR MEMBER WITH THE PAPER LINING THE INSIDE OF THE TUBULAR MEMBER, AND END PORTIONS OF THE TUBULAR MEMBER FOLDED ABOUT THE ENDS OF THE CIGARETTES TO FORM A CLOSED WRAPPER, A LONGITUDINAL SEAM DEFINED BY ONE MARGINAL SIDE EDGE PORTION OF THE SHEET OVERLAPPING AND HEAT SEALED TO THE OPPOSITE MARGINAL SIDE EDGE PORTION AND CHARACTERIZED BY THE OVERLAPPING MARGINAL SIDE EDGE PORTION BEING FOLDED BACK AGAINST ITSELF WITH THE FOIL ON THE OUTSIDE OF THE FOLD SO THAT THE LONGITUDINAL SEAM IS DEFINED BY ADHESIVELY FORMED FOIL-TO-FOIL FACES OF THE MARGINAL SIDE EDGE PORTIONS, SAID FOLDED END PORTIONS OF THE TUBULAR MEMBER FOLDED WITH EACH OVERLAPPING PORTION HAVING FOIL ON THE OUTSIDE OF THE FOLD TO DEFINE ADHESIVELY JOINED FOIL-TO-FOIL FACES AND CHARACTERIZED BY THE MARGINAL END EDGE OF THE OUTERMOST FOLDED PORTION ON EACH END BEING FOLDED BACK AGAINST ITSELF WITH FOIL ON THE OUTSIDE OF THE FOLD, MOISTURE PENETRATION THROUGH THE PACKAGE BEING PREVENTED BY THE COATING AND THE LONGITUDINAL SEAM AND CLOSED END CONSTRUCTION BUT GAS UNDER PRESSURE IN THE PACKAGE BEING PERMEABLE THROUGH THE COATED LAMINATE.