The sentencings had been set for Wednesday. Prosecutors said the delay was because of a pending court filing related to a recently reached settlement between the government, Adelphia and the Rigas family.
John Rigas, who founded Adelphia, and his son Timothy, who served as chief financial officer, were convicted in July 2004 of conspiracy, bank fraud and securities fraud. The bank fraud counts alone carry up to 30 years in prison.
Adelphia, then based in Coudersport, Pa., went bankrupt in 2002 after disclosing $2.3 billion in off-balance-sheet debt. It now operates under bankruptcy protection in Greenwood Village, Colo.
In April, the company agreed to pay $715 million to settle a federal investigation into the accounting fraud. Members of the Rigas family also agreed to forfeit more than 95 percent of their assets, a total the Securities and Exchange Commission (search) said would top $1.5 billion.
Another Rigas son, Michael, the company's former secretary, faces a retrial in October. Jurors deadlocked on 17 criminal counts against him at the trial last summer.