Key legal question
Whether the federal appeal could proceed despite non-payment of the ordered cost advance after the grace period
Extracted holding
No. The appeal could not be entered into because the appellant failed to pay the advance even within the additional period.
Extracted reasoning
Under Art. 62 para. 3 BGG, failure to pay the advance after a further deadline leads to non-entry in the simplified procedure under Art. 108 para. 1 lit. a and para. 2 BGG.