Kernrechtsfrage
Whether the cantonal appeal against the IV-Stelle decision was filed within the statutory 30-day period.
Extrahierter Entscheid
No. The appeal period began at the latest with notice to the claimant's professional representative, so the appeal filed on 2008-12-27 was late.
Extrahierte Begründung
Under the applicable social insurance rules, the time limit runs from service of the decision; if a party is represented, notice to the attorney triggers the deadline, regardless of when the client personally learns of the decision.