Patents by Inventor Rosemary C. Stevenson

Rosemary C. Stevenson 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: 4507087
    Abstract: The present invention relates to a closed finger painting system that is adapted to be both clean and reusable. Provided is a rigid base member to which a number of closed, clear, flexible bags are attached. The bags are particularly adapted to be overlapped with respect to each other. Each bag contains a colorful, transparent fluid. The fluids can be manipulated within each bag by pressing the bags with one's fingers. When the fluids in more than one bag overlap, they create an optical impression of being mixed to create new colors. Therefore, an infinite variety of distinctive, abstract designs can be created.
    Type: Grant
    Filed: August 23, 1984
    Date of Patent: March 26, 1985
    Assignee: Inventions International Incorporated
    Inventor: Rosemary C. Stevenson