The firm asked a California federal judge to indefinitely delay enforcing a court order that bars it from selling its popular Bratz dolls and using the Bratz name.
MGA attorney Thomas Nolan filed a notice of appeal informing the court that MGA intends to appeal the December 4th court order.
US District Judge Stephen Larson last week issued a permanent injunction, preventing MGA from selling the dolls, after finding that "hundreds" of Bratz products infringe on copyrights owned by rival toymaker Mattel.
The judge also ordered MGA to recall all Bratz dolls from retailers and destroy doll molds. The order was stayed until early next year.
MGA will seek am emergency stay from the federal appeals court if Larson rules against it.