Patents by Inventor Timothy E. Colvin

Timothy E. Colvin 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: 4718135
    Abstract: A shoe tree (10) having toe and heel engaging portions (12, 14) connected together for articulated movement between an extended generally longitudinally aligned condition and a retracted non-aligned condition. A shoe horn (50) secured to and extending from the heel engaging portion (14) provides a lever to facilitate its movement between the extended and retracted conditions.
    Type: Grant
    Filed: May 1, 1987
    Date of Patent: January 12, 1988
    Inventor: Timothy E. Colvin