Patents by Inventor Joseph G. Feldman

Joseph G. Feldman 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).

  • Floor composition
    Patent number: 4444925
    Abstract: A sub-flooring mix comprising a composition of calcium sulfate hemihydrate and other additives; and sand and water. Polyvinyl alcohol is added to the composition, which prevents surface dusting when the mix sets.
    Type: Grant
    Filed: December 16, 1982
    Date of Patent: April 24, 1984
    Assignee: Gyp-Crete Corporation
    Inventor: Joseph G. Feldman