Intellectual PropertyCopyright and Trademark
Copyright vs. Trademark: What Is the Difference?
Copyright and trademark are the two most commonly confused forms of intellectual property, and the confusion costs people money, lawsuits, and missed protection. This article lays the two systems side by side: what each one protects, where the rights come from, how long they last, which government office handles them, what symbols you use, and how infringement is judged. We work through five concrete examples--a logo, a jingle, a slogan, a fictional character, and a piece of software--to show where the regimes diverge and where they overlap on the very same creation. We give special attention to the boundary policed by Dastar Corp. v. Twentieth Century Fox, the Supreme Court's rule that trademark cannot be used as a perpetual substitute for expired copyright. Every legal point is anchored in primary authority (the Copyright Act, the Lanham Act, and leading Supreme Court and circuit decisions) and reputable secondary sources (the U.S. Copyright Office and the USPTO). By the end you will have a working decision framework for which protection you need, when you need both, and what to do next.