Key legal question
Whether the deadline for filing the federal tax complaint should be restored under Art. 50 BGG.
Extracted holding
No. The appellants showed only inattention, not an excusable impediment; with due care they could have filed on time.
Extracted reasoning
Restoration requires that the party was prevented without fault and that even careful conduct would not have allowed timely action. The two judgments were distinguishable in wording, pagination, and parties, so the confusion did not amount to an unavoidable obstacle.