Patents by Inventor Sidney Kastner

Sidney Kastner 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).

  • Resilient, all-surface soles for footwear
    Patent number: 6915595
    Abstract: A resilient shoe sole having a less resilient outer layer and a more resilient inner layer, and retractable studs anchored in the inner, more resilient layer. The bottom surface of the sole has annular grooves formed around the tip portions of the studs to permit those portions to flex when pressure is applied to the bottom surface, as during walking on a hard surface.
    Type: Grant
    Filed: March 22, 2004
    Date of Patent: July 12, 2005
    Inventor: Sidney Kastner
  • Resilient, all-surface soles for footwear
    Publication number: 20040134102
    Abstract: A resilient shoe sole having a less resilient outer layer and a more resilient inner layer, and retractable studs anchored in the inner, more resilient layer. The bottom surface of the sole has annular grooves formed around the tip portions of the studs to permit those portions to flex when pressure is applied to the bottom surface, as during walking on a hard surface.
    Type: Application
    Filed: March 22, 2004
    Publication date: July 15, 2004
    Inventor: Sidney Kastner
  • Resilient, all-surface soles for footwear
    Publication number: 20020029495
    Abstract: A resilient shoe sole having a less resilient outer layer and a more resilient inner layer, and retractable studs anchored in the inner, more resilient layer. The bottom surface of the sole has annular grooves formed around the tip portions of the studs to permit those portions to flex when pressure is applied to the bottom surface, as during walking on a hard surface.
    Type: Application
    Filed: September 10, 2001
    Publication date: March 14, 2002
    Inventor: Sidney Kastner
  • Resilient, all-surface sole
    Patent number: 5634283
    Abstract: A resilient, all-surface sole for footwear in which metal studs are mounted in the sole and extend beyond the bottom surface of the sole to such an extent that when footwear embodying the sole is worn, the metal stud is depressed within the sole until the tips of the studs are substantially at the plane of the bottom surface of the sole.
    Type: Grant
    Filed: December 22, 1995
    Date of Patent: June 3, 1997
    Inventor: Sidney Kastner