Combination container with removable closure

A container and removable interlocked closure of circular form;

• the container being comprised of a base and an upstanding perimeter wall defining an open topped fluid tight vessel, a circumferential and outwardly disposed peripheral bead in a normal plane at the open top of the container, the closure being comprised of a wall engaged with the bead and a rim circumferentially coextensive with and conforming to said bead and with a ridge continuously underlying the said bead to interlock therewith, seal means disposed between the closure wall and the bead, and a circumferentially continuous conical skirt depending divergently from the said ridge and presenting a manually engageable edge remote from the rim for outward upward deflection deforming the rim and causing it to revolve the ridge outward from the bead in opposite circumferential directions from any point of deflection to thereby release the closure from the container.