Patents by Inventor Mary A. Schuld

Mary A. Schuld 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).

  • Vacuum cleaning machine
    Patent number: 4739535
    Abstract: A vacuum cleaning machine for fireplaces and the like having a decorative canister enclosed in a vacuum chamber containing a fireproofed dust bag, a blower and electric motor unit and storage reels for an electric cord and a flexible vacuum hose.
    Type: Grant
    Filed: March 6, 1986
    Date of Patent: April 26, 1988
    Inventors: Ernest R. Schuld, Mary A. Schuld