|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||220/603 ; D7/534 ; 220/627|
|발명자 / 주소|
|인용정보||피인용 횟수 : 30 인용 특허 : 0|
The present invention is concerned with self-righting drinking cups and provides for a two part cup, the first part of which is a generally hollow cylindrical liquid container, and the second part of which is a base for the liquid container. The base member has a convex surface progressively decreasing from its junction with the drinking cup proper to the lowermost portion of the base.Certain dimensional ratios are critical to the self-righting performance of the cup. The diameter of the lowermost portion of the base must be about 0.39 to 0.75, preferabl...