A federal appeals court is reviewing whether the imprisoned founder of Adelphia Communications Corp. and his son can face a second federal fraud trial.

A full 3rd U.S. Circuit Court of Appeals panel in Philadelphia will hear defense arguments that a second trial in Pennsylvania amounts to double jeopardy for John Rigas and his son, Timothy.

John Rigas is serving a 12-year term and Timothy Rigas a 17-year term after convictions in New York for defrauding their now-defunct cable television giant, which was based in Coudersport, Pa. Prosecutors say they used the company like a piggy bank.

A 3rd Circuit panel had sided 2-1 with the Rigases' double-jeopardy claims and ordered a lower-court review. The full panel is rehearing the issue at prosecutors' request.