US Patent 8997979 Slide-open package of tobacco articles

A package of tobacco articles, having an inner container containing a group of tobacco articles; an outer container which houses the inner container in such a manner as to allow the inner container to slide, with respect to the outer container, between a closed position, in which the inner container is inserted inside the outer container, and an open position, in which the inner container is partly extracted from the outer container; and at least one lock member which, in releasable manner by user action from the outside, prevents the inner container in the closed position from sliding with respect to the outer container.