What Is a Trademark?

Written by Georgia Nackley, Esq. — Trademark Attorney | 1,000+ USPTO applications filed

Published: March 1, 2024

Last updated: October 6, 2026

Every business has a brand — a name, a logo, a slogan, or simply an identity that customers come to recognize. But recognition alone does not give you legal rights. Understanding what a trademark actually is, what it protects, and what it does not protect is the first step toward building a brand you can legally protect and defend.

The Legal Definition

A trademark is any word, name, symbol, or design, or any combination of those, that identifies the source of goods or services and distinguishes them from those of other providers. In plain terms, a trademark is a source identifier. It tells consumers who made something or who provides a service.

The Lanham Act, the federal statute that governs trademark law in the United States, defines a trademark as a mark that is "used in commerce" or that an applicant has a bona fide intention to use in commerce. That distinction is important because trademark rights are generally tied to use in the marketplace, while federal law also allows applicants to apply based on an intent to use a mark before that use begins.

What Can Be a Trademark?

Trademarks can take many forms. Word marks protect the text of a name or slogan regardless of font or presentation (i.e. APPLE, NIKE, VERIZON). Design marks protect a specific logo or graphic. Trade dress protects the distinctive appearance of a product or its packaging, like the shape of a Coca-Cola bottle or the layout of an Apple Store.

Beyond those common forms, the law also protects colors (Tiffany blue for jewelry), sounds (the NBC chime), and even scents in some circumstances — provided the mark is distinctive and has been used in commerce in a way that consumers associate with a particular source. The unifying principle is distinctiveness: the mark must function to identify your brand, not merely describe what you sell.

Distinctiveness falls on a spectrum. Fanciful marks — invented words like KODAK or XEROX — are the strongest because they have no prior meaning outside the brand. Arbitrary marks apply existing words to unrelated products (APPLE for computers). Suggestive marks hint at a quality without describing it directly (NETFLIX suggests streaming without saying so). Descriptive marks are harder to register unless they have acquired distinctiveness through long use. Generic terms — the actual name of the product category — can never be protected as trademarks.

™ vs. ® — What's the Difference?

The ™ symbol can be used by anyone claiming trademark rights in a name, logo, slogan, or combination thereof, regardless of whether the mark is registered. It puts the public on notice that you consider the mark yours, but it does not provide the legal protections that come with federal registration.

The ® symbol is different. It is a legal designation that may only be used once the U.S. Patent and Trademark Office has officially registered your mark. Using ® on an unregistered mark is a federal violation. Once you have a registration, using ® is not required, but it signals to competitors and consumers that the mark is federally registered and that you are claiming the legal rights associated with that registration.

Trademarks vs. Business Names and Trade Names

One of the most common misconceptions we see at Vallo Law is that registering a business name with the state gives the owner trademark rights. It does not. State business registration is an administrative filing that allows an entity to operate under a particular name within the state. It does not establish trademark rights or determine whether you have the right to use that name as a brand.

The same is true of domain names. Registering a domain does not create trademark rights in the name. A domain registration is simply a record of your right to use a particular internet address; it is not a legal claim to the brand associated with that address. As a result, registering a domain name does not prevent someone else from having trademark rights in a similar or identical name.

Federal trademark registration provides a different level of protection. Registration with the U.S. Patent and Trademark Office creates a public record of your trademark rights and provides constructive notice nationwide. In other words, others generally cannot later claim that they were unaware of your registered mark when adopting a similar mark.

What Can't Be Trademarked?

Not every name or logo can be registered as a trademark. There are several reasons the USPTO may refuse an application, but three of the most common are that the mark is descriptive, generic, or likely to cause confusion with an existing trademark. Other grounds for refusal may apply depending on the mark and the circumstances.

A mark may be refused as merely descriptive if it directly describes an aspect of the goods or services rather than identifying their source. A generic term names the type of goods or services themselves and cannot function as a trademark. And even a distinctive mark may be refused if it is too similar to an existing mark used with related goods or services — a likelihood of confusion refusal, one of the most common reasons the USPTO refuses trademark applications.

That is why a professional clearance search before filing can be so valuable. Identifying potential conflicts before investing significant time and money in a brand can help you avoid problems later.

Common Law vs. Registered Trademarks

In the United States, trademark rights can arise from actually using a name or brand in commerce even if you never register it. These are called common law trademark rights. If you have been using your mark in a particular geographic area, you may have rights to that mark in that area. Those rights can be enforced in court.

But common law rights have important limitations. They generally extend only to the geographic area where you are actually using the mark, and if you ever need to enforce those rights, you may have to prove your use and the scope of your rights with evidence.

A federal trademark registration provides important advantages that common law rights do not. Registration can provide nationwide constructive notice of your claim to the mark, and it gives you access to additional enforcement tools — including the ability to record your registration with U.S. Customs and Border Protection to help prevent infringing goods from entering the country. In other words, using your trademark can give you rights, but registering it can give you significantly more protection.

Why Register with the USPTO?

If using your trademark can give you some rights, why register it? Because federal registration gives your brand a level of protection that common law rights alone generally cannot provide. Here are some of the biggest benefits:

Nationwide protection. A federal registration gives you rights across the United States, rather than limiting your protection to the geographic area where you are currently doing business. Your filing date can also establish an important priority date against later users of similar marks.

Stronger legal protection. A federal registration creates important legal presumptions in your favor. If someone challenges your trademark rights, the registration provides evidence that you own the mark and have exclusive rights to use it for the goods or services covered by the registration.

The ® symbol. Once your trademark is federally registered, you can use the ® symbol next to your mark. It tells others that your trademark is federally registered and can help discourage others from adopting a similar brand.

More tools to enforce your rights. Federal registration gives you additional options for protecting your brand, including the ability to record your registration with U.S. Customs and Border Protection to help stop counterfeit goods from entering the country.

Protection as your business grows. If you eventually expand outside the United States, a U.S. registration can potentially serve as a foundation for seeking trademark protection in other countries.

A trademark registration does more than put your name on a government database. It gives you a stronger legal foundation for protecting your brand as your business grows.

How Long Does a Trademark Last?

Unlike patents and copyrights, a trademark can last indefinitely as long as you continue to use it. A trademark registration does not expire on a fixed schedule. Instead, it must be maintained through continued commercial use and periodic filings with the USPTO.

Between the fifth and sixth year after registration, you must file a Declaration of Use (Section 8) confirming that the mark is still being used in commerce. You may also file an optional Declaration of Incontestability (Section 15) after five years of continuous use, which can limit the grounds on which others can challenge certain aspects of your registration. At the ten-year mark, you must file a combined renewal and declaration of use. After that, renewals are required every ten years. Miss a required deadline, and the USPTO can cancel your registration.

There is also a separate doctrine of abandonment. If you stop using your trademark for three consecutive years, that nonuse creates a presumption of abandonment, and your trademark rights can be lost even if you have continued filing maintenance documents. A trademark is a right tied to ongoing commercial use, not a one-time filing.

Frequently Asked Questions

Does a trademark expire?

A federal trademark registration does not expire automatically, but it must be maintained. You must file a Declaration of Use between the fifth and sixth year after registration, then renew every ten years. A mark can also be lost through abandonment if you stop using it in commerce for three consecutive years.

What's the difference between ™ and ®?

The ™ symbol is a way of telling the public that you are claiming trademark rights in a name, logo, or other brand. You can use ™ whether or not your trademark is federally registered. The ® symbol indicates that your trademark has been federally registered with the USPTO. You may use ® only after the USPTO has officially registered your mark. The important rule is simple: you can use ™ without a registration, but you should use ® only for a trademark that is federally registered.

Can I trademark a color?

Yes, in limited circumstances — but protecting a color as a trademark can be difficult. A color may be eligible for trademark protection if consumers have come to recognize that color as identifying a particular brand, a concept known as acquired distinctiveness. The color also cannot serve a functional purpose for the product or service. Well-known examples include Tiffany blue, John Deere green, and UPS brown. For most businesses, however, protecting a single color requires substantial evidence showing that consumers actually recognize the color as a source identifier.

Does a trademark protect me nationwide?

A federal trademark registration gives you nationwide rights. Common law trademark rights (without registration) are limited to the geographic area where you actually use the mark commercially.

Can I trademark a name I haven't used yet?

Yes. If you plan to use a trademark but have not launched yet, you can file an intent-to-use application with the USPTO. This allows you to establish a priority date before you begin using the mark in commerce. You will then need to show actual use within the required timeframe before the trademark can register, with extensions available for up to three years.

What is the difference between a trademark and a copyright?

A trademark identifies the source of goods or services. A copyright protects original creative works (writing, music, art, software) from the moment of creation. They protect different things and are administered by different agencies (USPTO for trademarks; U.S. Copyright Office for copyrights). A logo can be protected by both: the trademark protects it as a source identifier; the copyright protects the creative expression of the artwork.

Do I need a trademark attorney to file?

You can file a trademark application without an attorney. Working with a trademark attorney, however, can help identify potential conflicts, avoid common filing mistakes, and prepare the application to give it the best chance of proceeding smoothly. That does not guarantee registration. The USPTO may still issue a refusal or request additional information, even when an attorney prepares the application. Vallo Law offers flat-fee trademark registration, so you know the cost upfront.

Georgia Nackley, Esq.

Trademark Attorney | 1,000+ USPTO applications filed

Georgia is a trademark attorney with more than 1,000 USPTO trademark applications filed. She handles every trademark matter at Vallo Law. Learn more about Georgia.