Disney and IP: how are the characters protected?

When a company like Disney wants to protect a fictional character, it typically relies on a “bundle” of legal rights. No single right is sufficient by itself; rather, multiple forms of intellectual property (IP) overlap. Here are the main ones:

Copyright

Copyright protects “original works of authorship” — e.g. films, drawings, animations, scripts, etc. Copyright arises automatically, and protects the expression of an idea, rather that the idea itself.

It gives the copyright holder (or their assignee) the exclusive rights to reproduce, adapt, distribute, publicly display or perform the work, and to create derivative works.

But copyright protection is finite: after a set term, the work enters the public domain (unless renewed or extended by law). In the UK, copyright protection lasts for the life of the author, plus 70 years. Derivative works (later versions or evolutions) may themselves be separately protected.

Trade marks

Trade marks protects words, names, symbols, designs, or combinations that identify the source of goods or services. Trade marks are registered rights, and therefore require an application to be filed.

Unlike copyright, trademark protection can last indefinitely, so long as the owner continues to use the mark in commerce and renews registrations every 10 years.

For characters like Mickey Mouse, Disney has registered trademarks for his name, likeness, poses, logos, etc., covering goods and services for toys, clothing, entertainment etc.

The “Mickey Mouse Protection Act” & Copyright Extensions

Disney (and other big content owners) have long been concerned about their early works entering the public domain. In the U.S., that concern led to key legal changes:

• In 1976, the U.S. Copyright Act was overhauled, providing a longer base period for copyrights and adjusting renewal rules.
• In 1998, Congress passed the Sonny Bono Copyright Term Extension Act (often called the “Mickey Mouse Protection Act”), which extended copyright terms by 20 years — for corporate works, to 95 years from publication (or 120 from creation, whichever earlier).
• That extension meant that many works that would otherwise have entered the public domain earlier remained protected for longer.

Because of that extension, Disney’s earliest Mickey works have now entered into the public domain. The current situation with the popular characters are as follows:

Mickey Mouse

• The short Steamboat Willie (1928) is the key point: this was one of Mickey’s earliest public appearances (and the first synchronised sound cartoon). As of January 1, 2024, the copyright on Steamboat Willie expired, making that version of Mickey (and associated elements of that film) part of the U.S. public domain.
• But—and this is crucial—only that specific version, as embodied in Steamboat Willie, is in the public domain. That means the right to reproduce, distribute, perform that film (and make derivative works based on that film) is now free from copyright restrictions (as long as derivatives avoid infringing still-protected elements).
• Later versions of Mickey—his more modern looks, colour designs, character developments, newer cartoons—remain under copyright protection.
• Also, Disney holds trademark rights in various depictions of Mickey (e.g. modern Mickey ears, silhouettes, poses). So even for the Steamboat Willie version, use in commerce is subject to trademark constraints. This complicates the matter, and makes any use of Steamboat Willie still tricky.

Minnie Mouse

The situation for Minnie Mouse is similar, but somewhat offset:

• Minnie appeared alongside Mickey in Steamboat Willie, so the Minnie in that film (in her earliest form, as shown in Steamboat Willie) is also part of the public domain as of January 1, 2024.
• However, Minnie’s “sound versions” of some cartoons (e.g. Plane Crazy, The Gallopin’ Gaucho) entered the public domain later—in 2025—and other later versions of Minnie remain under copyright protection.
• As with Mickey, later designs or character developments of Minnie are still protected and subject to Disney’s trade mark rights.

Key Legal and Practical Caveats / Constraints

Just because some early versions are now public domain does not mean one can freely exploit the characters without risk. Several constraints remain:

Trademark Risk / Consumer Confusion
Even with copyright expired for the 1928 version, Disney’s trademark rights remain very strong. If someone uses Mickey (even the public domain version) in a commercial context in a manner that could mislead consumers into believing Disney endorses it, Disney could sue for trademark infringement. Use of the name “Mickey Mouse” is itself a trademark in many classes (e.g. toys, clothing, entertainment). Some commentary warns that even non-commercial use can raise issues of dilution or “tarnishment” under U.S. trademark laws.

Derivative Works & Later Copyrights
If your new use draws too heavily from a later-protected version of Mickey (say the modern look, the gloves, colour, etc.), you could infringe. The public domain status does not free you to use all Mickey elements—just those from that early film. Any derivative must avoid stepping on still-copyrighted territory.

Rights Vary by Country / Territoriality 
Copyright and trademark laws differ across jurisdictions. Mickey (and Minnie) may be public domain in the U.S. for Steamboat Willie, but still protected in many foreign countries depending on local copyright duration rules, copyright renewal practices, or whether the country applies the “rule of the shorter term.” For example, EU countries commonly protect works until 70 years after the author’s death (or 70 years after publication in some cases). If Disney’s works are protected there, they remain so for the applicable local term.

Enforcement

Disney is very aggressive in protecting its brand image. Even if a use is arguably legal under copyright, Disney may send cease-and-desist letters or sue under trademark or unfair competition theories, contending consumer confusion or dilution. Public domain uses that conflict with Disney’s brand image (e.g. disparaging portrayals) may attract litigation or public relations battles.

To conclude, a brand like Disney has created a multifaceted bubble of protection around its characters, even though the copyright protection in some start to expire. It is important that you know the risks of any action you take that make infringe on their rights. If you would like some further information on trade mark protection, please contact the Trademarkroom team today.