Carton with tuck-in closure flap

Claim 1

In a carton for a free-flowing product formed of semirigid packaging material and having a generally tubular configuration of rectangular cross section, which carton includes a pair of opposed face panels of substantially the same dimensions; a. an inner closure flap joined along a first fold line to one of said face panels and of a shape and size substantially coextensive with the cross sectional area of said carton so as to substantially enclose one end of said carton, said flap being joined alonG a second fold line at one side thereof to a folded flap overlying and attached to a sidewall panel of said carton; b. an outer closure flap joined along a third fold line to the other one of said face panels and of substantially the same dimensions as said inner closure flap, said outer flap being adhered to said inner flap and having at least a side end portion thereof openable about said second fold line and formed with a free corner section; and c. a weakened line along which at least a portion of said inner flap underlying the openable portion of said outer flap is severable from said carton to open same, said weakened line extending partly along said first fold line and continuing obliquely across said inner flap to said second fold line to define in conjunction with said first and second fold lines an interior triangular corner section in register with said free corner section of the openable portion of said outer closure flap, said weakened line continuing along said second fold line to the free edge of said inner closure flap, said interior corner section remaining joined to said one face panel and said folded flap when said inner flap portion is severed from said carton and disposed to engage said free corner section when tucked there-beneath during carton reclosure to retain the openable portion of said outer closure flap in the reclosed position.