Patent ID: 7243812

Claim:
A plural chambered cup for serving mixed drinks comprising: a) an outer chamber having a bottom with an outer edge, said outer edge terminating in an upwardly extending outer chamber side wall terminating in an uppermost outer chamber rim that forms the periphery of an open top; b) an inner chamber disposed within said outer chamber having an inner chamber side wall extending upwardly from said outer chamber bottom terminating in an uppermost inner chamber rim that forms the periphery of an open top and having an inner chamber bottom with an outer edge terminating in said upwardly extending inner chamber side wall, wherein said inner chamber rim is disposed a selected distance below said outer chamber rim; and c) wherein said inner chamber bottom with an outer edge terminating in said upwardly extending inner chamber side wall forms a lower chamber and the liquid volume of said inner chamber and, when said cup is inverted, said lower chamber are substantially equal.