Patents by Inventor Herbert Eschendal

Herbert Eschendal 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).

  • Patent number: D243804
    Type: Grant
    Filed: August 11, 1975
    Date of Patent: March 29, 1977
    Inventors: Ray L. Underwood, Herbert Eschendal