Patents by Inventor Mary F. Prince

Mary F. Prince 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).

  • Oral hygiene instrument
    Patent number: 4538631
    Abstract: An oral hygiene instrument has a handle having a brush on one end and a suction hose connector on the other end. An internal bore begins at an opening in the center of the brush and extends through the handle to the suction hose connector. A suction system of the type found in most hospitals may be connected to the connector in order to evacuate any moisture or debris adjacent the opening.
    Type: Grant
    Filed: April 29, 1983
    Date of Patent: September 3, 1985
    Inventor: Mary F. Prince