Patents by Inventor Mitchell Petroff

Mitchell Petroff 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).

  • Filter and air freshener apparatus
    Patent number: 4065262
    Abstract: An air filter and air freshener apparatus is disclosed for a domestic air supply comprising an air filter element having a plurality of containers positioned in the air filter for holding an air freshener composition. The containers have removable caps so that any one or a plurality of such containers may be opened to control the quantity of air freshener composition released from the combination air filter and air freshener apparatus when employed in a domestic air supply system.
    Type: Grant
    Filed: November 2, 1976
    Date of Patent: December 27, 1977
    Inventor: Mitchell Petroff