Patent ID: 7905389

Claim:
Stiff packet with a hinged lid for cigarettes, wherein said packet comprises a containing body closed at the top by a lid hinged on the containing body and said lid is rotationally movable between a closed position and an open position, and wherein said packet is delimited by a wall arrangement comprising a substantially flat front wall, a substantially flat rear wall and a pair of shaped side walls that protrudes towards the exterior of said container, each shaped side wall being connected to said front wall along a first edge, and to said rear wall along a second edge, each shaped side wall comprising an outer shaped panel attached to an inner shaped panel, wherein said packet comprises a stiffening element arranged to stiffen said shaped side walls, wherein said stiffening element comprises a substantially flat stiffening wall extending from said first edge to said second edge, said stiffening element being spaced from the corresponding shaped side wall and having a length the same as a longitudinal dimension of said shaped side wall, said length and said longitudinal dimension being measured parallel to said first edge, such that said front wall, said rear wall and said stiffening walls define an empty parallelepiped space which corresponds to the shape of a composition of cigarettes to be introduced inside the packet and said packet further comprises a gap between each shaped side wall and its corresponding stiffening wall.