Patents by Inventor Carol D. Milner

Carol D. Milner 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).

  • Butterfly puzzle
    Patent number: D245528
    Type: Grant
    Filed: September 17, 1975
    Date of Patent: August 23, 1977
    Inventor: Carol D. Milner