US Patent 9522761 Inter-lockable containers

A box for receiving a food item is provided, and the box is usable with an additional box that is also configured to receive a food item. The box includes a bottom portion, and a top portion that is hingedly connected to the bottom portion and that forms a cover. The top portion includes a top panel and a side panel connected to the top panel, and the side panel has a bendable tab formed therein. The tab is bendable to an operative position and cooperable with the additional box to link the two boxes together when the additional box is placed on top of the box.