Questione giuridica chiave
Whether the appeal had to be admitted despite the missing handwritten signature.
Decisione estratta
No. Because the appellant did not submit a duly signed appeal within the non-extendable deadline, the appeal could not be considered.
Motivazione estratta
The Federal Court had warned that failure to cure the defect would lead to non-entry. Since the signed copy was not returned in time, Art. 42(5) BGG required disregard of the filing and non-entry under Art. 108(1)(a) BGG.