Patents by Inventor Jerry L. Caldwell

Jerry L. Caldwell 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: D252701
    Type: Grant
    Filed: May 18, 1977
    Date of Patent: August 21, 1979
    Inventor: Jerry L. Caldwell