Patents by Inventor Dwight L. Thomas

Dwight L. 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).

  • Sectional shoe mid-sole
    Patent number: 3952429
    Abstract: A composite mid-sole especially adapted for incorporation into platform shoes and consisting of a rigid heel and shank part interconnected with a flexible forepart. The mid-sole parts are composed of moldable plastic material of differing densities, the composite mid-sole being a unit to be lasted to a shoe upper and a shoe outsole in a subsequent manufacturing operation. An improved fastening means conjoining the heel and shank part to the forepart of the mid-sole is disclosed.
    Type: Grant
    Filed: January 13, 1975
    Date of Patent: April 27, 1976
    Assignee: Vulcan Corporation
    Inventor: Dwight L. Thomas