US Patent 10472118 Plastic container and base portion for plastic container

A plastic container includes a neck portion, a sidewall portion, and a base including a support ring that extends downward and is configured to support the container on a support surface; a first base portion that extends upwardly from the support ring; a second base portion that extends downwardly from the first base portion; and a reentrant portion that extends upwardly from the second base portion. In embodiments, the container can hold carbonated contents and the sidewall portion may be substantially smooth.