Patents by Inventor Ellen A. Letourneau

Ellen A. Letourneau has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5772223
    Abstract: The design shows an axle bar or supporting shaft upon which wheels are mounted. The support bar has a clamping mechanism attached to it next to the wheels. The clamps can tightly grab ahold of the legs of a chair. The chair is then tilted backwards and rolled on its attached rear wheels. It is intended that personal belongings may be placed on the chair to facilitate its use as a cart. The wheel apparatus can quickly and easily be removed from the chair by unclamping it. The chair can be utilized for sitting with or without the wheels affixed.
    Type: Grant
    Filed: June 18, 1996
    Date of Patent: June 30, 1998
    Inventor: Ellen A. Letourneau