Abstract: System for interconnecting containers into multiple-container groups, without requiring any packaging material. Complementary interconnecting structure is provided as an integral part of containers that can be interconnected in a vertical or end-to-end array, in a lateral or side-by-side array, or in combined vertical and lateral array. Numerous embodiments of container structure are disclosed for interconnecting containers into a multiple-container package having a desired vertical and/or lateral array.

Abstract: An easy opening container having a wall in which a tear tab is formed which is nondetachably removable from the wall. An opening tab lies alongside the wall with a nose portion overlying the tear tab, and with a handle portion lying alongside the wall at a location spaced from the tear tab portion. The opening tab is nondetachably connected to the wall by a bendable member having a bend line which permits the handle portion to be moved away from the wall, so that the nose portion moves inwardly into contact with the tear tab. The bendable connection between the handle and the wall remains on the wall at all times, and the opening tab is provided with means which permit only a limited extent of the opening tab to enter into the opening defined by tearaway and inward bending of the tear tab. An air vent into the opened container is provided.