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Learn›What Is a Trademark?
Basics

What Is a Trademark? A Complete Guide

A trademark is how customers know your product came from you — not someone else. Here's everything you need to know about what trademarks protect, the different types, and how to get one.

Quick Answer

A trademark is a word, name, logo, slogan, or other identifier that distinguishes the source of goods or services from others in the marketplace. Federal trademark registration with the USPTO gives you nationwide rights to that identifier, the legal presumption of ownership, and the ability to stop copycats. It lasts indefinitely as long as you keep using it.

The legal definition

Under the Lanham Act (the primary U.S. trademark statute), a trademark is defined as any word, name, symbol, or device — or any combination thereof — used in commerce to identify and distinguish the goods of one person from those manufactured or sold by others.

That's the legal language. In plain English: a trademark tells consumers where a product comes from. When you see the golden arches, you know it's McDonald's. When you see the Nike swoosh, you know it's Nike. Those are trademarks doing their job.

Types of trademarks

The USPTO recognizes several categories of trademarks:

Word mark
A brand name in plain text, regardless of font or style. Example: APPLE, GOOGLE, NETFLIX. The most common type of trademark — protects the word itself, not a specific design.
Design mark (logo)
A specific graphic, logo, or stylized version of a name. Example: Apple's apple logo, Nike's swoosh. Protects the visual design, not the underlying words.
Composite mark
A combination of words and design elements filed together as one mark. Example: a stylized company name with a logo. Many brands file both a word mark and a composite mark for broader protection.
Slogan / tagline
A short phrase used to market goods or services. Example: "Just Do It" (Nike), "Think Different" (Apple). Must be distinctive — not just descriptive of the product.
Trade dress
The overall commercial image or appearance of a product or store — including color, shape, and packaging. Example: the shape of a Coca-Cola bottle, the red sole of a Louboutin shoe.
Sound mark
A distinctive sound that identifies a brand. Example: Intel's five-note chime, the NBC chimes. Rare but enforceable if distinctive enough.

What does a trademark actually protect?

A trademark protects your brand identifier — the thing consumers associate with you — in connection with specific goods or services. Registration is tied to one or more "Nice classes," which are international categories covering 45 types of goods and services.

This means two companies can use the same word in different industries without conflict. "DELTA" is trademarked by both Delta Air Lines and Delta Faucet — in different classes. The key question is always whether consumers would be confused about the source of the goods or services.

A registered trademark gives you:

  • Nationwide presumption of ownership
  • The right to use the ® symbol
  • The ability to sue in federal court for infringement
  • The ability to block infringing imports through U.S. Customs
  • A public record that discourages others from using a similar mark

What you can't trademark

The USPTO will refuse to register marks that are:

Generic: Common words for the product itself. You can't trademark "Apple" for apples — it's the generic term. But you can trademark "APPLE" for computers because it's arbitrary in that context.
Merely descriptive: Words that only describe a feature or characteristic of the goods. "Cold and Creamy" for ice cream is too descriptive. "CREAMY" alone is borderline. Descriptive marks can sometimes gain protection through long use ("secondary meaning").
Primarily geographic: "SILICON VALLEY SOFTWARE" for software from Silicon Valley would likely be refused as primarily geographically descriptive.
Primarily a surname: "SMITH'S" for a law firm is problematic because it's primarily a common surname. Surnames can eventually gain trademark status through extensive use (like "McDonald's").
Scandalous or deceptive: Marks that are immoral, deceptive, or falsely suggest a connection with persons, institutions, or governments.
Confusingly similar to an existing mark: If your mark would likely cause consumer confusion with an already-registered mark in a related class, it will be refused. This is why a trademark search is essential before filing.

™ vs ® — what's the difference?

™
Trademark symbol
Can be used by anyone claiming trademark rights — even without registration. Signals you are treating something as your brand identifier, but offers no federal legal protections.
®
Registered trademark
Can only be used after the USPTO grants federal registration. Using ® without registration is illegal and can result in penalties. Provides full legal presumptions of ownership.

How long does trademark protection last?

A registered trademark lasts indefinitely — as long as you keep using it in commerce and file the required maintenance documents:

FilingWhen DuePurpose
Section 8 DeclarationBetween years 5–6 after registrationConfirm the mark is still in use
Section 9 RenewalEvery 10 yearsRenew the registration
Section 15 Declaration (optional)After 5 years of continuous useMake the mark "incontestable" — harder to challenge

Miss these deadlines and your registration will be cancelled — even if your mark has been famous for decades.

Trademark vs. copyright vs. patent

These three types of intellectual property each protect different things:

TypeProtectsDuration
TrademarkBrand identifiers (names, logos, slogans)Indefinite (with use & renewal)
CopyrightOriginal creative works (writing, music, art, code)Life of author + 70 years
PatentInventions, processes, designs20 years (utility); 15 years (design)

For a deeper dive, see our guide: Trademark vs. Copyright — What's the Difference?

Related guides

How to Do a Trademark Search
Step-by-step: find conflicts before you file
›
How to Register a Trademark
The full USPTO registration process, from filing to certificate
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How Much Does a Trademark Cost?
USPTO fees, attorney costs, and what to budget
›

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