Stackable container

A stackable container, comprising:

• a base having an upstanding wall and a lower floor defining an accessible storage space therein, said base including a lower step below said floor having a first positive locking structure;
• and
• a lid having an outer circular wall greater in diameter than said rim for covering and attaching to an exterior surface on the upper portion of the upstanding wall of said base, said lid having a rim extending upward, said rim defining an upwardly projecting cylinder smaller in diameter than said outer circular wall and being adapted to engage with the step of the base, said rim additionally comprising a second positive locking structure sized and shaped to mate with the first positive locking structure formed in the step of the base.

A stackable container system, comprising:

• two containers each having:
• a lid having an outer circular wall and a first plurality of multiple thread segments formed on an upstanding cylindrical step sized smaller than said circular wall;
• a base having an upper lid receiving portion and having a second plurality of multiple thread segments formed on a downwardly depending rim sized smaller than said circular wall, said second plurality of multiple thread segments sized and shaped to mate with said first plurality of multiple thread segments, so that either of said two bases can be stacked on either said two lids and attached thereto by way of said first and second thread segments.

A stackable container, comprising:

• a generally cylindrical base having an upstanding circular wall with external threads in an upper portion and terminating at a lower portion in a rim, the upstanding wall defining an accessible storage space therein and having a floor formed across the wall and positioned above the lower edge of the rim, the base being injection molded and the rim including at least six evenly spaced female thread segments formed on the inner surface of the rim and extending inwardly;
• and
• a circular lid for covering said base, said lid defined by an outer vertical wall having internal threads for attaching said lid to said base and a top, said top having an upstanding step sized to engage inside the rim of the base, said step being injection molded and additionally comprising at least six evenly spaced male thread segments formed on an outer surface sized and shaped to mate with the female thread segments formed in the rim of the base, said step and said rim being sized smaller than said outer vertical wall so that said outer vertical wall is visible and accessible when said base is joined over said lid.