13.1.2.2.4 Validity — Trademark/TradDoeses— - Acquired Distinctiveness is a legal concept that refers to a trademark or trade dress that has become distinctive of a specific source of goods or services due to its use in commerce over time. The concept applies to trademarks and trade dress that are not inherently distinctive. There are two types of acquired distinctiveness: inherent distinctiveness and acquired distinctiveness. Inherent distinctiveness refers to a trademark or trade dress that is inherently distinctive, meaning it is immediately recognizable as a source identifier. Acquired distinctiveness refers to trademarks and trade dress that have become distinctive of a specific source of goods or services due to its use in commerce over time.