Patents by Inventor Geoffrey John Lloyd

Geoffrey John Lloyd 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).

  • Vehicle anti-theft alarm system
    Patent number: 4103285
    Abstract: An alarm system for a vehicle or trailer, the system comprising an alarm circuit which is energizable after a predetermined time period responsively to actuation of a control circuit of the system, and switch means for controlling the operating state of the control circuit.
    Type: Grant
    Filed: December 7, 1976
    Date of Patent: July 25, 1978
    Inventors: William Lloyd, Geoffrey John Lloyd, David Dawson