Patents by Inventor Rene E. Khayat

Rene E. Khayat 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: 5870838
    Abstract: A retractable spike system for providing traction when desired under the entire surface of a footwear sole and heel. Two or more retractable spike assemblies are inserted into cavities in the sole and heel of the footwear. The spikes on each assembly can be engaged by a cam or wedge pressing on a carrier plate. All the assemblies are connected together by a rigid coil attached to the cams or a shaft to which the wedges are fixed, in such a manner that a single mechanism can simultaneously retract or extend all the spikes on all assemblies.
    Type: Grant
    Filed: August 4, 1997
    Date of Patent: February 16, 1999
    Inventor: Rene E. Khayat