Registration may be required in order to file a lawsuit for trademark infringement. PETA later surrendered the domains under threat of similar legal action over trademark infringement. These were the predecessors of the modern patent and trademark system. The AMA did not trademark or copyright the symbol . He is recognizable by his trademark pencil moustache. The company sought a declaration permitting registration of their trademark. This was confirmed by posts from the U.S. Patent and Trademark website. Trinicon is a registered trademark of Sony. It is a registered trademark and property of PANArt Hangbau AG. Monolith itself was acquired by Warner Bros., which owns the "Blood" trademark and intellectual property. ICI registered the product under the trademark Perspex. The Foundation has recently acquired ownership of the Famous Players Trademark. AFDX is a worldwide registered trademark by Airbus. MLS has no plans to trademark the name. Some countries have specific laws against cybersquatting beyond the normal rules of trademark law.