Patents by Inventor Barry W. Lock

Barry W. Lock 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).

  • Shoe with improved dual hardness heel-lift
    Patent number: 5325612
    Abstract: The present invention relates to a shoe having an improved unitary dual hardness dowel-lift with superior wear and non-slip characteristics. The dual hardness dowel-lift includes a hard polyurethane top portion and a soft polyurethane bottom portion. The bottom portion is cast onto the top portion. The bottom portion is a softer material which possesses a hardness lower than the top portion as measured by the Shore A Hardness test, and preferably is a thermoset polyurethane elastomer.
    Type: Grant
    Filed: June 16, 1993
    Date of Patent: July 5, 1994
    Assignee: Nine West Group, Inc.
    Inventors: Barry W. Lock, William J. Scholl