Patents by Inventor John S. Renkert

John S. Renkert 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).

  • Patent number: 3965635
    Abstract: A method for making a building panel and the panel made by the steps which include laying a mold form horizontally, laying bricks in the pattern indicated in the mold form and depositing a fibrous and cementitious mixture in the spaces between the bricks and over the tops of the bricks. Providing a reinforcing lattice work and forcing it into the still soft cementitious mixture. Subsequently, a resin insulating material is foamed in situ in the mold cavities formed between the elements of the lattice work. Optionally, a smooth finish coat of material may be troweled or sprayed over the insulation material.
    Type: Grant
    Filed: April 17, 1975
    Date of Patent: June 29, 1976
    Assignee: Metropolitan Industries, Inc.
    Inventor: John S. Renkert