Patents by Inventor Robert E. Cluff

Robert E. Cluff 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).

  • Cylindrical necktie
    Patent number: D306518
    Type: Grant
    Filed: April 21, 1987
    Date of Patent: March 13, 1990
    Inventor: Robert E. Cluff