Patents by Inventor Michael D. DeFever

Michael D. DeFever 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: 4156316
    Abstract: A device for facilitating walking while wearing a ski boot includes a main body portion which shifts the center of gravity of the ski boot and which is fitted to the sole of the ski boot. The device includes means for attaching the device to the heel and toe portions of the ski boot associated therewith. When fitted to a ski boot a walking type of movement is effectuated, which enables the user to wear ski boots, without discomfort, for extended periods of time while walking with the ski boot.
    Type: Grant
    Filed: February 28, 1977
    Date of Patent: May 29, 1979
    Inventor: Michael D. DeFever
  • Patent number: D250796
    Type: Grant
    Filed: October 13, 1976
    Date of Patent: January 16, 1979
    Inventor: Michael D. DeFever