Patents by Inventor Norman V. McDonald

Norman V. McDonald 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).

  • Disposable protective shield for handle of illumination device
    Patent number: 4795669
    Abstract: A disposable shield for the handle of a light used by dentists or doctors is disclosed. A new shield is used for each patient, thereby preventing the spreading of contagious diseases. The shield includes a flap covering the stem of the handle, thereby providing additional protection.
    Type: Grant
    Filed: November 9, 1987
    Date of Patent: January 3, 1989
    Inventors: Mary J. Bowskill, Norman V. McDonald
  • Disposable protective shield for handle of illumination device intended for medical and/or dental purposes
    Patent number: 4722296
    Abstract: A disposable shield for the handle of a light used by dentists or doctors is disclosed. A new shield is used for each patient, thereby preventing the spreading of contagious diseases.
    Type: Grant
    Filed: January 28, 1987
    Date of Patent: February 2, 1988
    Inventors: Mary J. Bowskill, Norman V. McDonald