|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||135/066; 135/067; 135/084; 482/052; 482/067; 182/106; 297/423.41|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 2 인용 특허 : 34|
A step-extending device is adapted for use in association with a walker to ascend or descend a stairway. The step-extending device may employ a first base and a second base, each of which is adapted to receive legs of a walker upon respective upper surfaces. The device may be used in connection with a frame that connects the first and second bases to each other. A cross member connects first and second bases. A frame includes one or more upright members with handles adapted for grasping and moving the step-extending device from one stair to another stair...
What is claimed is: 1. A step-extending device configured for assisting persons to walk upon steps of a stairway using a four-point walker, comprising: (a) a first base and a second base, each of said first and second bases defining a flat planar underside configured to rest unattended upon a first step when the device is in use, each of said first and second bases further defining a flat planar upper surface disposed above each respective underside and disposable in use to support one leg of the walker at a height substantially equal to the step dispos...