Patents by Inventor Leo J. Tremont

Leo J. Tremont 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).

  • Portable, gravity-actuated alarm for use with a window or door
    Patent number: 3932856
    Abstract: This portable, self-contained alarm device for a door or window is usable in one position with an inwardly-opening door or window or, in a different position, with an outwardly-opening or sliding door or window. It has a pivoted lever arranged to drop by gravity and close a magnetic switch when the door or window is opened. The alarm device may be positioned next to the door or window, or remote from it for operation by a pull cord.
    Type: Grant
    Filed: December 9, 1974
    Date of Patent: January 13, 1976
    Inventor: Leo J. Tremont