Patent ID: 9346585
Filing Date: 2016-05-24
CPC Classification: B29C,B65D

Claim Text:
1. An apparatus, comprising: a wall comprising a plurality of sides attached at a first end to a top end section and attached at a second end to a bottom end section; an opening formed by a neck in said top end section providing access to an internal area, thereby forming a container; an indented receptor space formed on the bottom end section, the indented receptor space being centered around a longitudinal axis of the container and inset from edges of the bottom end section and configured to receive a neck on a separate apparatus; at least one interconnecting tongue, formed on a first side of the plurality of sides of the wall, extending a partial vertical length of the wall, having undercuts, the tongue extending no lower below a height of the indented receptor space than 25% of the height of such indented receptor space; and at least one groove, formed vertically on a second side of the plurality of sides of the wall, shaped in a reverse image of the tongue, wherein the groove comprises undercuts configured for the groove and is formed to receive a second tongue on the separate apparatus, the separate apparatus thereby becoming interlocked with the apparatus.