Patents by Inventor Thomas Holtgrefe

Thomas Holtgrefe 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).

  • Publication number: 20060150471
    Abstract: A mole trap has a pair of spring-loaded jaws. A platform is pivotally connected to the jaws to limit the travel of the trap into the ground and to stabilize the trap on the ground when it is set. A lever assembly forces the jaws open and sets the trap. An adjustable trigger mechanism is positioned on the ground above a mole burrow. The disturbance of a mole traveling beneath the trigger causes the lever assembly to collapse, thereby permitting the jaws to close and destroy the animal.
    Type: Application
    Filed: January 7, 2005
    Publication date: July 13, 2006
    Inventor: Thomas Holtgrefe