Copyright or Trademark? Sorting Out Which One Protects What
By Casey Scott McKay ·
Copyright and trademark are the two forms of intellectual property people confuse most, and the mistake routinely costs founders money, lawsuits, and the very protection they meant to secure. This article sets the two regimes side by side and keeps them there: what each one actually protects, where the right comes from, how long it lasts, which federal office issues it, which symbols you may use, and the very different questions a court asks before it finds infringement. We work through six concrete, invented examples -- a mascot logo, a sound mark, a slogan, a comic-book character, a mobile app, and a bottle's trade dress -- to show where the systems diverge and where they protect the same object at once. Special attention goes to the guardrails that keep one regime from swallowing the other, above all Dastar Corp. v. Twentieth Century Fox, the Supreme Court's rule that trademark cannot be 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 in standard secondary sources such as McCarthy and the Copyright Office's Compendium. You will leave with a working decision framework for which protection you need, when you need both, and what to do next.
Intellectual Property -> Copyright and Trademark | Published 27 June 2026 | rightsy.io
It is a Sunday morning at the Eastgate Swap Meet, and the aisles are an unsolicited master class in intellectual property. On the first table, phone cases march in tidy rows, each printed with a round-eared mouse who is almost -- but not legally -- a very famous one. Two tables down, a vendor sells perfume in a frosted bottle whose label reads, in elegant script, "Chanele." Across the way a bin of plush dragons glows in the exact lavender of a hit streaming cartoon, and beside it hangs a rack of handbags stamped edge to edge with a repeating monogram that wants very badly to be a French fashion house. Your niece is already tugging your sleeve toward the dragons. You, cursed with just enough legal training to ruin a pleasant morning, have stopped walking. Something on these tables is being infringed. Possibly several somethings. But which law, on which table, is protecting which feature?
That question -- which law, which feature -- is the entire game, and most people get it wrong before they finish asking it. Copyright and trademark are the two most frequently confused branches of intellectual property, and the confusion is not a harmless vocabulary slip. It is expensive. Founders pay lawyers to defend a "copyright" in a brand name that copyright has never once protected. Designers assume the trademark they filed covers their drawings, when it only covers the way a name sells hoodies. A startup watches a competitor walk off with the catchphrase that was the business, because someone at a kitchen-table meeting insisted the slogan was "copyrighted," so nobody ever filed the trademark that would actually have stopped the theft. The two systems feel like cousins because both deal in creative output and both let you tell other people to stop. But they protect different things, for different reasons, under different statutes, for different lengths of time, through different government offices, with different symbols, and they are infringed under tests that share almost nothing.
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