Failure to File Timely Declaration of Appeal Renders Seizure Null

The case involved an appeal where the appellant failed to file the mandatory declaration of appeal with the clerk of the deciding court within the prescribed legal timeframe, which is a necessary step for the appeal to be properly constituted. The appellate court determined that this procedural omission, specifically the lack of timely filing of the declaration of appeal with the competent registry, constituted a failure to properly seize the court. Consequently, the court declared the act of seizure (the appeal) null and void, as the procedural requirements for initiating the appeal were not met.