Patents by Inventor Adelbert L. Kester

Adelbert L. Kester 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).

  • Non-slip footwear
    Patent number: 4356643
    Abstract: A footwear having an underside of the sole thereof covered by a friction pad comprised of interlaced or intertwisted, relatively stiff nylon fibers woven through a backing liner secured to the sole underside, while the lower, outer surface of the pad thus formed, serves to engage a slippery surface without possible slipping.
    Type: Grant
    Filed: November 28, 1980
    Date of Patent: November 2, 1982
    Inventors: Adelbert L. Kester, George Spector