Patent ID: 7857156

Claim:
A plastic bottle having a body portion that collapses internally when an external force is applied, comprising: at least one depressible portion formed on a circumferential wall of the body portion to protrude externally, the at least one depressible portion being depressed internally when the external force is applied, depression-resistant portions formed on the circumferential wall of the body portion, the depression-resistant portions being adjacent to the at least one depressible portion, the depression-resistant portions being configured to resist depression from the external force, the depression-resistant portions including a plurality of first depression-resistant portions extending in a direction of a central axis of the plastic bottle and a plurality of second depression-resistant portions extending in a circumferential direction of the body portion, wherein at least one of the plurality of second depression-resistant portions integrally joins an upper edge of at least one of the plurality of first depression-resistant portions, wherein at least one of the plurality of second depression-resistant portions integrally joins a middle point of at least one of the plurality of first depression-resistant portions, wherein at least one of the plurality of second depression-resistant portions integrally joins a lower edge of at least one of the plurality of first depression-resistant portions, and wherein when the at least one depressible portion is depressed internally, the plurality of first and second depression-resistant portions form a maximum perimeter of the plastic bottle.