Patents by Inventor Gary Siepker

Gary Siepker 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).

  • Grain cart periscope
    Patent number: 5842920
    Abstract: A periscope of the present invention is adapted to allow a farmer to monitor the inside of a wagon while it is being filled with grain from a grain cart. In this way, the farmer will know when the wagon is full and can prevent the wagon from overfilling and spilling grain. The top mirror of the periscope is convex in shape and can be adjusted to change the field of view.
    Type: Grant
    Filed: June 9, 1997
    Date of Patent: December 1, 1998
    Inventor: Gary Siepker