Patents by Inventor William Paul Spickofsky

William Paul Spickofsky 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).

  • Drain clearing bellows
    Patent number: 3994032
    Abstract: A collapsable bellows for applying pressure to clear a sink drain is generally an elongated tubular thin-walled rubber or resilient plastic member having a mouth and flange at one end and a closure wall at the other end. The sidewall of the member has a series of accordian pleats along its length, which are formed by alternate frusto-conical and annular wall sections. An integral mushroom-shaped handle projects from the exterior of the closure wall.
    Type: Grant
    Filed: August 20, 1975
    Date of Patent: November 30, 1976
    Assignee: Lawrence Peska Associates, Inc.
    Inventor: William Paul Spickofsky