Patcharaporn Puttipon2465/Shutterstock
- McDonald's lost its chicken Big Mac trademark rights in the EU on Wednesday.
- The trading bloc's General Court ruled in favor of Supermac's, an Irish fast-food chain.
- Rival takeaway companies will now be able to use the term "Mac" to sell chicken-based products.
McDonald's will no longer have the right to call its chicken burgers Big Macs in the European Union following a landmark ruling by one of the trading bloc's top courts.