Patents by Inventor John E. Duckro, Jr.

John E. Duckro, Jr. 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: D300283
    Type: Grant
    Filed: January 27, 1986
    Date of Patent: March 21, 1989
    Assignee: John E. Duckro, Jr.
    Inventors: John E. Duckro, Jr., Barbara A. Duckro