Patents by Inventor Lora C. Bonser

Lora C. Bonser 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).

  • Flexible circuit with coverplate layer and overlapping protective layer
    Patent number: 6320137
    Abstract: A printed circuit including a dielectric substrate and a conductive trace attached to a surface of the dielectric substrate. The trace includes a base layer and a coverplate layer on a portion of the base layer. The coverplate layer defines a coverplate edge on the base layer. A protective layer is formed on a portion of the coverplate layer. The protective layer extends beyond the coverplate edge onto at least a portion of the base layer of the trace. A key aspect of the present invention is that the protective layer overlaps the coverplate edge of each trace to reduce the potential for corrosion of the base layer at the coverplate edge.
    Type: Grant
    Filed: April 11, 2000
    Date of Patent: November 20, 2001
    Assignee: 3M Innovative Properties Company
    Inventors: Lora C. Bonser, Terry F. Hayden, Robert J. Schubert