Patents by Inventor Norman L. Marsh

Norman L. Marsh 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).

  • Method for repairing roofing
    Patent number: 3996396
    Abstract: A method for repairing a roof comprising the steps of: spreading a porous conformable membrane over the existing roofing materials, moistening the membrane to cause it to conform to the roofing surface, tacking the membrane through the existing roofing materials and into the roofing substrate, applying a sealing adhesive to the membrane, and covering the membrane with a waterproof roof coating.
    Type: Grant
    Filed: May 27, 1975
    Date of Patent: December 7, 1976
    Inventors: Howard C. Hansen, Norman L. Marsh