What are the limits on dilution?
The Federal Trademark Dilution Act of 1995 (FTDA, 15 U.S.C. 1125) prohibits the commercial use of a famous mark if such use causes dilution of the distinctive quality of the mark. A mark may be diluted either by “tarnishment” or “blurring.” Tarnishment occurs when someone uses a mark on inferior or unwholesome goods or services. For example a court found that a sexually explicit web site using the domain name “candyland.com” diluted by tarnishment the famous trademark “CANDY LAND” owned by Hasbro, Inc. for its board games. Blurring occurs when a famous mark or a mark similar to it is used without permission on other goods and services. The unique and distinctive character of the famous mark to identify one source is weakened by the additional use even though it may not cause confusion to the consumer. The following uses of a famous mark are specifically permitted under the Act: 1) Fair use in comparative advertising to identify the goods or services of the owner of the mark. 2) Noncomm
