Patents by Inventor Stefano Frustagli

Stefano Frustagli 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).

  • Toothbrush with built-in "squeezable" valved toothpaste holder
    Patent number: 4221492
    Abstract: A brush provided with a hollow handle for containing a supply of material and having a flexible wall for forcing the material past a valve and to the brush bristles at one end and a removable closure at the other end for material supply to the handle.
    Type: Grant
    Filed: December 1, 1977
    Date of Patent: September 9, 1980
    Inventors: Lucio Boscardin, Stefano Frustagli, Alfredo Veronese