Patents by Inventor Harry D. Grafton

Harry D. Grafton 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).

  • Concrete structures for use in shore protection and/or wave control and method of making same
    Patent number: 4594206
    Abstract: Concrete structures consist of fabric containers which are filled with concrete through an opening in the top thereof while the top of the container is suspended from a portable support frame placed over the container. The support frame supports the container in an open and upward position with the bottom wall of the container resting on the ground while concrete is pumped or chuted into the container through the top opening.
    Type: Grant
    Filed: April 5, 1984
    Date of Patent: June 10, 1986
    Inventor: Harry D. Grafton