Trademarks are not limited to words and designs, but can include “sensory” marks such as colors, smells and sounds. All of the above sounds are examples of trademarks: the lion’s roar is a registered trademark owned by Metro-Goldwyn-Mayer Lion Corp. for motion pictures and entertainment services, and heard at the start of MGM movies; the five notes are a registered trademark owned by Intel Corporation for computer hardware and operating system software; and the spoken words “You’ve Got Mail” is AOL’s registered trademark for providing access to a computer network.
