Patents by Inventor Ursula Exner

Ursula Exner 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).

  • Article of jewelry of platinum and fine gold
    Patent number: 4891276
    Abstract: An article of jewelry of platinum and fine gold of the type wherein the two metals are connected to one another by applying the fine gold in the solid state on the platinum and heating the fine gold to its melting temperature. The article of jewelry includes area portions of thin sheets of fine gold and reinforcements of platinum bordering the area portions of fine gold.
    Type: Grant
    Filed: October 24, 1984
    Date of Patent: January 2, 1990
    Inventor: Ursula Exner