Patents by Inventor Fred L. Supnet

Fred L. Supnet 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).

  • Method of fabricating mask-over-copper printed circuit boards
    Patent number: 4088545
    Abstract: A method of fabricating mask-over-copper printed circuit boards from a laminated insulated board material having conductive metallic coatings on both sides thereof includes piercing a plurality of holes completely through the laminate, forming a desired circuit connection pattern of copper extending between selected holes on the laminate first side and electrically connecting the laminate first side connection pattern to the second side copper coating by depositing copper material through the holes.
    Type: Grant
    Filed: January 31, 1977
    Date of Patent: May 9, 1978
    Inventor: Fred L. Supnet