Patents by Inventor Raymond E. Griffith

Raymond E. Griffith 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).

  • Animal access door for screen doors
    Patent number: 4053007
    Abstract: Presented is a screen door structure embodying a smaller animal access door through which animals may pass through the screen door while still providing protection against flying insects.
    Type: Grant
    Filed: January 9, 1975
    Date of Patent: October 11, 1977
    Inventor: Raymond E. Griffith