The man who attached a fake collar bomb to an Australian teenager in a case that shocked the country has lodged an appeal against the severity of his sentence.
Paul Douglas Peters was jailed in November last year for at least 10 years, with a maximum of 13 and a half for the attack on Madeleine Pulver.
On August 3, 2011, Peters, a wealthy businessman based mainly in the US, entered the Pulver family home in Mosman on Sydney's north shore armed with a baseball bat and placed a device around the neck of 18-year-old Madeleine.
The device had a USB stick and ransom note attached, warning that tampering with it would make it explode.
After a 10-hour ordeal, the device was confirmed as a hoax.
Peters was arrested in the home he shared with his ex-wife in Louisville, Kentucky about two weeks later and extradited to NSW.
Peters' lawyer hung up on AAP when contacted for comment.
Taking into account time already served, Peters will be eligible for parole in August 2021.