Patent ID: 7080748

Claim:
A container made of thermoplastic synthetic resin having a central axis extending longitudinally, the container comprising: a body, the body having a left and a right symmetrically arranged relative to the central axis, each of the left and the right being formed with a distortion-absorbing portion that absorbs distortion in response to a pressure change in the container, each of the distortion-absorbing portions being formed with a single grip portion, and each of the grip portions including a plurality of ribs and a central portion of the left and the right, each of the grip portions having an area smaller than an area of the distortion-absorbing portion, and a depth larger than a depth of the distortion-absorbing portion, each of the grip portions being formed with the plurality of ribs extended longitudinally along each of the grip portions without a transverse rib provided in the grip portions, and each of the grip portions being formed at approximately the center of the distortion-absorbing portion.