Questione giuridica chiave
Whether the federal public-law appeal was filed within the 30-day deadline.
Decisione estratta
The appeal period began on 20 February 2009 and expired on 23 March 2009; the appeal filed on 8/9 April 2009 was late.
Motivazione estratta
Under Art. 44 and 45 BGG, the decision was deemed served at the end of the first unclaimed pickup period after the first registered mailing, so the cantonal judgment became final for service purposes on 19 February 2009.