Questão jurídica principal
Whether refusing to convert an untimely appeal declaration into a cross-appeal violated the ban on excessive formalism under Art. 29(1) BV.
Decisão extraída
No. Missing both the appeal and cross-appeal deadlines meant the appellant forfeited review; the cantonal court was not obliged to convert one remedy into the other.
Fundamentação extraída
Procedural deadlines are essential to orderly and equal proceedings. The two remedies are different in timing, function, and legal effect, and cantonal law did not provide for such conversion.