Patents by Inventor Alfred A. Calabro

Alfred A. Calabro 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).

  • Putter head
    Patent number: D444194
    Type: Grant
    Filed: July 18, 2000
    Date of Patent: June 26, 2001
    Inventor: Alfred A. Calabro