Patents by Inventor Carol S. Helwick

Carol S. Helwick 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).

  • Jewelry clip
    Patent number: 4754534
    Abstract: A clip assembly containing a resilient filler that secures chain jewelry when snapped closed over the chains.
    Type: Grant
    Filed: January 15, 1987
    Date of Patent: July 5, 1988
    Inventor: Carol S. Helwick