Patents by Inventor Walter J. Frigon

Walter J. Frigon 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).

  • Deodorizing fitting for air filters
    Patent number: 4563333
    Abstract: A deodorizing fitting is provided for an air filter used in air circulation ducting of a domestic dwelling or other building for deodorizing the circulating air. The fitting comprises a rectangular envelope of perforated cardboard with a deodorizing insert therein and adhesive-backed tabs on adjacent edges of the envelope for securing same in the corner of the filter.
    Type: Grant
    Filed: August 22, 1984
    Date of Patent: January 7, 1986
    Inventor: Walter J. Frigon
  • Fishing line handling tool
    Patent number: D508280
    Type: Grant
    Filed: June 17, 2004
    Date of Patent: August 9, 2005
    Inventor: Walter J. Frigon