Kernrechtsfrage
Whether the appellant's supplementary filing of 17 September 2009 could be considered despite expiry of the appeal period.
Extrahierter Entscheid
No. The supplementary filing was submitted after the 30-day appeal period had expired and could not be taken into account.
Extrahierte Begründung
The appeal period under Art. 100 Abs. 1 BGG had expired on 14 September 2009; improvements filed after that date are ineffective.