Patents by Inventor Henrietta M. Liwski

Henrietta M. Liwski 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: 4797521
    Abstract: A cookware pedestal for supporting food vessels in a microwave oven includes two pan-shaped dishes joined together at their bases in a substantially mirror arrangement. Each disk is provided with a different diameter rim to a secure surface for supporting food vessels of various sizes. The pedestal supports vessels in a horizontal and elevated disposition and in the case of vessels having metallic coatings on the bottom, maintains such coating isolated to allow browning or frying of foods without any damage to the pedestal or surrounding oven chamber.
    Type: Grant
    Filed: November 4, 1987
    Date of Patent: January 10, 1989
    Inventor: Henrietta M. Liwski
  • Patent number: D303608
    Type: Grant
    Filed: November 4, 1987
    Date of Patent: September 26, 1989
    Inventor: Henrietta M. Liwski