Question juridique clé
Whether the federal appeal was admissible despite non-payment of the advance on costs within the final deadline.
Solution extraite
The appeal was inadmissible because the advance on costs was not paid by 31 January 2012.
Motifs extraits
Under Art. 62(3) of the Federal Supreme Court Act, failure to pay the required advance within the non-extendable additional time limit leads to inadmissibility.