Patents by Inventor Michael S. Lidbom

Michael S. Lidbom 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 block with batter indicators
    Patent number: 6953309
    Abstract: A concrete retaining wall block provided with integral indicators that indicate the batter that will result from constructing a retaining wall of a multiplicity of the blocks. The indicators for indicating the batter are preferably one or more indentations formed in a surface of the block other than the front surface.
    Type: Grant
    Filed: July 13, 2004
    Date of Patent: October 11, 2005
    Assignee: Anchor Wall Systems, Inc.
    Inventors: Paul R. Tufts, Michael S. Lidbom