Patents by Inventor Alfred Constantino

Alfred Constantino 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).

  • Machine for removing tile with articulated frame
    Patent number: 6299257
    Abstract: A machine for scrapping surface materials from a floor having an articulated structure which allows the adjustment of the angle of the scraper blade by pivot motion of the main body element. A front wheel assembly is retractable to allow the blade to support the machine. A dual power mode is also provided.
    Type: Grant
    Filed: March 23, 1999
    Date of Patent: October 9, 2001
    Inventor: Alfred Constantino