Case C-392/09: Judgment of the Court (Third Chamber) of 30 September 2010 (reference for a preliminary ruling from the Baranya Megyei Bíróság — Republic of Hungary) — Uszodaépítő kft v APEH Központi Hivatal Hatósági Főosztály (Sixth VAT Directive — Directive 2006/112/EC — Right to deduct input tax — New national legislation — Requirements as to the content of an invoice — Retroactive application — Loss of the right to deduct)