The Lanham Act of 1946 is a federal trademark law in the United States that was enacted to provide protection for trademarks used in interstate commerce. The Act allows for the registration of trademarks with the United States Patent and Trademark Office (USPTO) and provides remedies for trademark infringement. The
From Wikipedia
The Lanham (Trademark) Act (Pub. L. 79–489, 60 Stat. 427, enacted July 5, 1946, codified at 15 U.S.C. § 1051 et seq. is the primary federal statute governing trademark law in the United States.