Patents by Inventor Michael J. Klinkhamer

Michael J. Klinkhamer 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: 5282333
    Abstract: An ice fishing hole cover comprising a box structure having two side panels, a front panel, a back panel, a hinged lid with a slit for a fishing line to pass through, and no bottom panel. A plurality of heating plates are attached to the underside of the lid, and a plurality of candleholders project from the interior sides of the side panels. The hole cover is made of transparent material and has a plurality of ventilation openings formed into the lid, front, back, and side panels.
    Type: Grant
    Filed: June 25, 1993
    Date of Patent: February 1, 1994
    Inventor: Michael J. Klinkhamer