Patents by Inventor Spencer Kraft

Spencer Kraft 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).

  • Beach sandal
    Patent number: 6516538
    Abstract: The present invention relates to a thin sandal made for reef and river walking utilizing a sponge-top layer directly fixed to a rubber sole as well as a single continuous adjustable elastic strap.
    Type: Grant
    Filed: February 26, 2001
    Date of Patent: February 11, 2003
    Inventor: Spencer Kraft
  • Beach sandal
    Publication number: 20020116840
    Abstract: The present invention relates to a thin sandal made for reef and river walking utilizing a sponge-top layer directly fixed to a rubber sole as well as a single continuous adjustable elastic strap.
    Type: Application
    Filed: February 26, 2001
    Publication date: August 29, 2002
    Inventor: Spencer Kraft