Patents by Inventor Jessica L. Cohn

Jessica L. Cohn 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: 4912944
    Abstract: An article of jewelry comprising a base element which supports an ornamented substrate element thereon by magnetic attraction, both the base element and the substrate element having magnetically attractable properties and at least one of them having the properties of a permanent magnet, whereby the substrate element is interchangeable with other like elements bearing different ornamentation.
    Type: Grant
    Filed: December 28, 1988
    Date of Patent: April 3, 1990
    Inventors: Dana B. Crosley, Jessica L. Cohn