Patents by Inventor Louis E. Lehmann

Louis E. Lehmann 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).

  • Fused decorative string set
    Patent number: 3968398
    Abstract: A string set, of the type used on Christmas trees, of series-connected incandescent lamps where two lamps nearest the string set plug are unshunted and are connected to the plug through a wire of a gauge larger than the wire connecting the remaining lamps in the set. The unshunted lamps and the larger wire serve as a fuse for the entire set.
    Type: Grant
    Filed: January 3, 1975
    Date of Patent: July 6, 1976
    Assignee: General Electric Company
    Inventors: Louis E. Lehmann, Ralph J. Luft