|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||280/087.042 ; 280/842|
|발명자 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 35 인용 특허 : 16|
A wheeled board apparatus has a platform with first and second concave portions. At least two primary wheels are located along a central longitudinal axis, with at least three outrigger wheels located generally along each concave sidecut.
[ I claim:] [1.] A wheeled board apparatus, comprising:a platform defining a top standing surface and a bottom surface, said bottom surface bearing at least two primary wheels having their rolling surfaces disposed in line along a central longitudinal axis of said platform;said platform having a first edge provided axially displaced on one side of said central longitudinal axis, said platform further having a second edge provided axially displaced on a second side of said central longitudinal axis opposite to said first edge, said first and second edges ...