Patents by Inventor Fred Kort

Fred Kort 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: 3950887
    Abstract: A bubble-making device comprising an aperture edge means defining a bubble-making open aperture which is adapted to be dipped into a bubble-making liquid having suitable surface tension and capillary-action characteristics such as to cause a film of the liquid to be formed across the bubble-making open aperture whenever the aperture edge means is dipped thereinto and removed therefrom. The device is normally provided with effective handle means to facilitate handling the bubble-making device and includes a supplementary area-increasing, liquid-pickup means comprising an effectively perforate structure carried by the aperture edge means and, in a preferred form, extending inwardly thereof and adapted to increase the amount of the bubble-making liquid picked up when dipped into the bubble-making liquid and subsenquently available for bubble-making purposes when air is forced through the bubble-making aperture and against a film of the bubble-making liquid normally extending thereacross.
    Type: Grant
    Filed: April 4, 1973
    Date of Patent: April 20, 1976
    Inventor: Fred Kort
  • Patent number: D428067
    Type: Grant
    Filed: November 8, 1999
    Date of Patent: July 11, 2000
    Assignee: Imperial Toy Corporation
    Inventor: Fred Kort