Patents by Inventor Charles E. McCarthy

Charles E. McCarthy 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).

  • Incandescent lamp having two-part insulative base
    Patent number: 4084112
    Abstract: A high wattage incandescent lamp which includes a two-part ceramic base. Within the base is a barrier section which separates the base's cavity from the respective pin recesses. The structure permits utilization of hollow pins which include a flattened end portion for being retained within the base. The lamp is especially suited for studio, theatre, and television applications.
    Type: Grant
    Filed: May 20, 1977
    Date of Patent: April 11, 1978
    Assignee: GTE Sylvania Incorporated
    Inventors: Roger T. Hebert, Bernard T. Pike, Charles E. McCarthy, Richard J. Shea