Patents by Inventor LeRoy T. Conklin

LeRoy T. Conklin 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 intrusion alarm
    Patent number: 4059832
    Abstract: A portable device for signaling the unauthorized movement of a closure member embodies an adjustable hanger bracket and an improved spring hinge construction which renders the device more sturdy, more reliable in operation and less expensive to manufacture. The alarm device also features a powerful buzzer powered by batteries in a unique holder.
    Type: Grant
    Filed: October 24, 1975
    Date of Patent: November 22, 1977
    Inventor: LeRoy T. Conklin