Patents by Inventor Raymond E. Irwin

Raymond E. Irwin 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).

  • Gable ventilator
    Patent number: D298053
    Type: Grant
    Filed: September 13, 1982
    Date of Patent: October 11, 1988
    Inventors: Arthur Waltz, Raymond E. Irwin
  • Gable ventilator
    Patent number: D298852
    Type: Grant
    Filed: September 13, 1982
    Date of Patent: December 6, 1988
    Inventors: Arthur Waltz, Raymond E. Irwin
  • Gable ventilator
    Patent number: D298853
    Type: Grant
    Filed: September 13, 1982
    Date of Patent: December 6, 1988
    Inventors: Arthur Waltz, Raymond E. Irwin