Kernrechtsfrage
Whether the son's reunification request was filed within the statutory deadline and thus enforceable as a right.
Extrahierter Entscheid
The request was late; naturalization did not restart the reunification deadline.
Extrahierte Begründung
The relevant deadline began at the latest when the father obtained settlement status on 2009-02-09 and expired on 2010-02-09. Citizenship changed the legal basis but not the deadline.