Patents by Inventor James B. O'Hara

James B. O'Hara 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: 4444619
    Abstract: A method of producing a printed circuit comprising printing a plating resist onto the clean surface of a layer of electrically conductive material on at least one side of a substrate so as to leave exposed only the required track areas of the surface; electroplating over the track areas a metal alloy, preferably a palladium/nickel alloy, which will act as an etch resist for the underlying electrically conductive material, which has good solderability, which has a melting point higher than 250.degree. C., and which will provide a base for gold plate; removing the plating resist; and removing the layer of electrically conductive material from the non-track areas by etching.
    Type: Grant
    Filed: December 30, 1982
    Date of Patent: April 24, 1984
    Inventor: James B. O'Hara