Removing due dates in Entourage 2004

Does anyone know how to remove a due date from a task in Entourage 2004, using AppleScript?

The task class has a “due date” property, which you can use to add any date you want. But once the date is there, there does not appear to be a “has due date” property that can be used to remove it??

Am I missing something? Any ideas?