Stackable containers

Abstract

A set of stackable containers includes first and second containers each featuring a body having a base and an open top and a lid removably covering the open top of the body. The lid of the first container features a recess while the lid of the second container features a circumferential ridge having an inner edge defining a center recess and an outer edge. The base of the first container body is sized to be received in the recess of the first container lid and in the center recess of the second container lid while the outer edge of the circumferential ridge of the second container lid sized to engage the base of the second container body.

1 . A lid for closing an open top of a first container comprising:
 a) a top surface;   b) an annular ridge positioned on the top surface and having an inner edge and an outer edge;   c) said inner edge of the annular ridge defining a center recess adapted to receive the base of a second container; and   d) said outer edge of the annular ridge adapted to engage a base of a third container.   
     
     
         2 . The lid of  claim 1  further comprising a circumferential rim. 
     
     
         3 . The lid of  claim 2  wherein the circumferential rim is downward extending and terminates in a circumferential lip that is adapted to engage a circumferential rim of the first container. 
     
     
         4 . The lid of  claim 1  where the lid is molded from plastic. 
     
     
         5 . The lid of  claim 1  where the lid is constructed of a transparent material. 
     
     
         6 . A stackable container comprising:
 a) a body having a base and an open top;   b) a lid removably covering the open top of the body;   c) said lid having a top surface with an annular ridge positioned thereon, said annular ridge having an inner edge and an outer edge;   d) said inner edge of the annular ridge defining a center recess adapted to receive the base of a second container; and   e) said outer edge of the annular ridge adapted to engage a base of a third container.   
     
     
         7 . The stackable container of  claim 6  wherein the lid includes a circumferential rim and the body includes a circumferential rim that is engages by the circumferential rim of the lid. 
     
     
         8 . The stackable container of  claim 7  wherein the circumferential rim is downward extending and terminates in a circumferential lip that engages the circumferential rim of the body. 
     
     
         9 . The stackable container of  claim 8  wherein the circumferential rim of the body is generally horizontal. 
     
     
         10 . The stackable container of  claim 6  wherein the base includes a downward-protruding annular wall. 
     
     
         11 . The stackable container of  claim 6  wherein the body and lid are molded from plastic. 
     
     
         12 . The stackable container of  claim 6  wherein the lid and body are constructed of a transparent material. 
     
     
         13 . A set of stackable containers comprising:
 a) a first container including:
 i. a body having a base and an open top; 
 ii. a lid removably covering the open top of the body and having a top surface featuring a recess; 
   b) a second container including:
 i. a body having a base and an open top; 
 ii. a lid removably covering the open top and having a top surface featuring a circumferential ridge having an inner edge and an outer edge; 
 iii. said inner edge defining a center recess; 
   c) said base of the first container body sized to be received in the recess of the first container lid and in the center recess of the second container lid; and   d) said outer edge of the circumferential ridge of the second container lid sized to engage the base of the second container body.   
     
     
         14 . The set of  claim 13  wherein the lids each include a circumferential rim and the bodies each include a circumferential rim that is engages by the circumferential rims of the lids. 
     
     
         15 . The set of  claim 14  wherein the circumferential rims are downward extending and terminate in circumferential lips that engage the circumferential rims of the bodies. 
     
     
         16 . The set of  claim 15  wherein the circumferential rims of the bodies are generally horizontal. 
     
     
         17 . The set of  claim 13  wherein the bases each include a downward-protruding annular wall. 
     
     
         18 . The set of  claim 17  wherein the base of the second container is broader than the base of the first container. 
     
     
         19 . The set of  claim 13  wherein the first and second containers are molded from plastic. 
     
     
         20 . The set of  claim 13  wherein the first and second containers are molded from transparent material.