Patents by Inventor Manuel Del Rosario

Manuel Del Rosario 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
    Patent number: 4333199
    Abstract: An improved toothbrush which includes an elongate handle and a brush with a base and a mounting in the form of a coil spring interconnecting the brush base to the distal end of the toothbrush for swinging, rotatable, tilting movement of the brush relative to the handle in use. Two embodiments are illustrated.
    Type: Grant
    Filed: April 30, 1981
    Date of Patent: June 8, 1982
    Inventor: Manuel Del Rosario