Questione giuridica chiave
Whether the federal appeal was admissible despite the missing electronic signature and failure to cure the defect in time.
Decisione estratta
No; the defect was not cured by the deadline, so the appeal could not be entered upon.
Motivazione estratta
The appellant was ordered under Art. 42(5) BGG to remedy the missing signature by 4 October 2012. He did not collect the postal notice, which was deemed served. The defect remained uncured.