Patents by Inventor Dennis W. Drumheller

Dennis W. Drumheller 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).

  • Patent number: 5165081
    Abstract: An auxiliary mirror that can be easily attached to a vehicle's existing rear-view mirror to improve visibility of the back seat or blind spots. The auxiliary mirror is mounted on a pair of telescoping brackets for attachment on either side and above or below the existing rear-view mirror. The pair of L-shaped brackets have intersecting back plates and arms that clamp onto the upper and lower edges of the existing rear-view mirror. The brackets are clamped with a finger nut and bolt in one embodiment and with a stiff coil spring in another.
    Type: Grant
    Filed: July 29, 1991
    Date of Patent: November 17, 1992
    Inventor: Dennis W. Drumheller