Patents by Inventor Gilbert Legault

Gilbert Legault 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).

  • Modular wall structure and units therefor
    Patent number: 5123221
    Abstract: Blocks cast from concrete into various shapes that include interlocking mortise and tenon corner blocks, cylindrical blocks stackable on a foundation course of base blocks formed with semi-cylindrical channels in which the cylindrical blocks fit, semi-cylindrical blocks and interlocking edging blocks of various forms function as basic modules from which retaining walls and the like may be assembled in the absence of mortar, building forms or poured concrete.
    Type: Grant
    Filed: July 31, 1989
    Date of Patent: June 23, 1992
    Inventor: Gilbert Legault