Patents by Inventor Giorgio Tommasini

Giorgio Tommasini 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).

  • Patent number: 4780704
    Abstract: The present invention is similar to the prior art devices in that it is a two part system. One part is a small and elongated magnet which is placed in the wallet. The other part is the electronic circuitry and audio producing device in which the circuit activating switch is held open as long as the wallet with its magnet is in proximity to the second part. When the wallet and the signaling device are separated sufficiently, the magnet no longer holds the activated switch open and the switch closes thus producing the audio signal.
    Type: Grant
    Filed: June 15, 1987
    Date of Patent: October 25, 1988
    Inventor: Giorgio Tommasini