Patents by Inventor Vilho Koljonen

Vilho Koljonen 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).

  • Dual color taillamp
    Patent number: 4041302
    Abstract: A concealed vehicle lamp assembly includes an energizable bulb and an exterior lens cover of transparent material aligned with an interior lens to intercept ambient light from the exterior lens and associated with means to reflect a first color through the exterior lens when the bulb is deenergized. The interior lens includes means for directing a second color through the exterior lens when the bulb is energized.
    Type: Grant
    Filed: July 6, 1976
    Date of Patent: August 9, 1977
    Assignee: General Motors Corporation
    Inventor: Vilho Koljonen