Patents by Inventor Edmund C. Sheahan

Edmund C. Sheahan 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).

  • Retaining block
    Patent number: 4067166
    Abstract: The block is preferably used in the construction of a retaining wall which would be constructed from a plurality of these blocks laid in a similar manner to the laying of conventional concrete blocks. The block of this invention is generally T-shaped having a facing wall and a somewhat elongated support wall.
    Type: Grant
    Filed: June 12, 1975
    Date of Patent: January 10, 1978
    Inventor: Edmund C. Sheahan