Patents by Inventor Dale H. Thomas

Dale H. Thomas 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).

  • Invalid lifting and walking device
    Patent number: 3999228
    Abstract: A power operated invalid lifting and walking device which is operated by the invalid. The invalid lifts himself to a standing position with a power hoist attached to the device. While supported in the standing position by the hoist, the invalid can propel the device by holding onto a handle bar and pushing against the floor with his feet.
    Type: Grant
    Filed: October 10, 1975
    Date of Patent: December 28, 1976
    Inventor: Dale H. Thomas