Patents by Inventor C. Perry Smith

C. Perry Smith 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).

  • Ortho-activating method and apparatus
    Patent number: 3975825
    Abstract: A removable orthodontic appliance for moving teeth is provided. It includes at least one or more inflatable membranes that are incorporated into the basic framework of the appliance. These inflatable membranes are inflated to desired pressures and the appliance is placed in the mouth so that the inflated membrane is on the opposite side of the direction the tooth is to be moved.
    Type: Grant
    Filed: June 11, 1975
    Date of Patent: August 24, 1976
    Inventor: C. Perry Smith