Patents by Inventor Uolevi Eerikki Virtanen

Uolevi Eerikki Virtanen 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).

  • Protective covering for scaffolding
    Patent number: 3995715
    Abstract: In combination with a scaffolding a plurality of sheets of plastic having bead portions, profiles surrounding the bead portions of each two abutting sheet edges thereby securing the sheets to each other. A plurality of attachment members partly surrounds the profiles and holds the profiles in related assembly with the scaffolding.
    Type: Grant
    Filed: September 10, 1975
    Date of Patent: December 7, 1976
    Assignee: A. Ahlstrom Osakeyhtio
    Inventor: Uolevi Eerikki Virtanen