Question juridique clé
Whether the time limit for filing observations could be restituted after the Supreme Court judgment had already been notified.
Solution extraite
Restitution was unavailable because the applicants did not perform the omitted act within 30 days after the impediment ceased.
Motifs extraits
Under Art. 50 LTF, the omitted act must be completed within the restitution period; the applicants submitted no observations, and their letter was not an observation on the appeal.