Patents by Inventor Maria C. Cantoni

Maria C. Cantoni 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).

  • Multiple filter unit
    Patent number: 4629479
    Abstract: A multiple filter unit in the form of a complete interchangeable unit for insertion into a motor vehicle interior ventilation duct, or into the mouth of air conditioners or into suction-producing apparatus for closed environments, including a rigid casing provided with retention and sealing means, a series of filter elements and/or chemical products and/or electrostatic filtering devices disposed in a predetermined order for filtering solid particulate matter, mists and air pollutant gases, and means for checking the degree of efficiency.
    Type: Grant
    Filed: May 14, 1985
    Date of Patent: December 16, 1986
    Assignee: Ital Idee s.r.l.
    Inventor: Maria C. Cantoni