Patents by Inventor Fredric Lukas

Fredric Lukas 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).

  • PBX automatic number identification system
    Patent number: 3967073
    Abstract: A PBX is disclosed having automatic number identification (ANI) equipment for generating signals which identify the calling station and trunk numbers of outgoing calls. A memory is interconnected with the ANI equipment for storing the identification signals prior to transmission to a central office. The memory can store up to five sets of identification signals and aids in preventing dial tone delay by decreasing the probability that the ANI system will become overloaded due to central office delay.
    Type: Grant
    Filed: January 9, 1975
    Date of Patent: June 29, 1976
    Assignee: Bell Telephone Laboratories, Incorporated
    Inventors: Harold Peter Anderson, George Albert Lesser, Fredric Lukas, Rodney Robert Maxon, James Hall Viamour