Patents by Inventor Sheldon Leventhal

Sheldon Leventhal 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).

  • Patent number: 5027468
    Abstract: The instant cleaning implement is of disposable construction for use with a mop frame or the like. It comprises a plurality of flexible absorbent elements joined together along an astricting connective alignment that is intermediate to the edges of said elements, each of which has a core portion comprising polymeric material. The implement has a pliant cleaning section comprising a group of rows of those portions of the absorbent elements that project from one side of the alignment in a configuration which is generally fan-like in vertical cross section. The process for making the implement comprises stacking the absorbent elements, then joining them along an astricting connective alignment which can be symmetric or asymmetric with respect to the resulting stack.
    Type: Grant
    Filed: August 29, 1989
    Date of Patent: July 2, 1991
    Inventors: Sheldon Leventhal, Henry R. Patricy