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SAN FRANCISCO -- A federal appeals court says Anna Nicole Smith's estate will receive none of the more than $300 million that she claimed her late billionaire husband had promised her.

The 9th U.S. Circuit Court of Appeals is the latest stop in the 15-year legal battle over the $1.6 billion estate that oil magnate J. Howard Marshall left after his 1995 death at age 90.

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Smith had married Marshall the previous year and argued that he meant to leave her more than $300 million.

A Texas state court ruled against Smith and in favor of Marshall's son, who argued the model should receive nothing.

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A federal bankruptcy court in Los Angeles later awarded her $474 million. A federal trial court later reduced that to $89 million.

Lawyers for the son's estate say they hope the litigation is at an end with Friday's ruling.