What Is a Trademark?
A trademark is any word, phrase, symbol, design, or combination of those that identifies the source of a product or service and distinguishes it from competitors. That covers more than logos — brand names, taglines, product packaging, and even certain sounds or colors can qualify if they've come to signal a specific business to consumers.
Trademark law exists to solve two problems at once: it lets businesses build reputation and goodwill around a brand without competitors free-riding on it, and it lets consumers trust that a name or logo means what they think it means.
Not everything qualifies. Generic terms (calling a coffee shop "Coffee Shop"), and purely descriptive terms without acquired distinctiveness, generally can't be trademarked on their own. The strongest marks are the ones that are invented or arbitrary — think words with no obvious connection to the product.
Why Federal Registration Matters
Using a name in your city gives you some legal protection automatically — that's common law trademark rights. But those rights only extend to the geographic area where you're actually doing business, and proving the boundaries of that area in a dispute is expensive and uncertain.
Federal registration with the USPTO changes the picture:
- Nationwide priority — your rights extend across the entire U.S., not just your local market
- Public notice — your mark shows up in USPTO searches, which stops other applicants and attorneys from filing something confusingly similar in the first place
- Legal presumption of ownership — in court, the registration itself is evidence that the mark is yours and valid
- Right to use the ® symbol — a visible signal to competitors that the mark is protected
- Basis for international filings — a U.S. registration is often a prerequisite for protecting the same mark abroad
Trademark Classes: Registering for What You Actually Sell
The USPTO organizes all goods and services into 45 numbered classes — Class 25 for clothing, Class 41 for education and entertainment, Class 35 for retail and advertising services, and so on. You don't register a trademark generally; you register it for specific goods or services within specific classes.
| Class | Covers |
|---|---|
| Class 9 | Software, apps, downloadable content |
| Class 25 | Clothing, footwear, headwear |
| Class 35 | Retail stores, e-commerce, advertising services |
| Class 41 | Education, training, entertainment services |
| Class 43 | Restaurants, cafes, food and drink services |
Filing in the wrong class — or too narrow a description within the right one — is one of the most common reasons applications get an office action. It's also one of the easiest problems to prevent with a clearance search and a properly scoped description before filing.
How the Filing Process Works
1. Clearance search
Before filing, search the USPTO database and common-law sources (state registries, business filings, domain names, social handles) for conflicting marks. This is the step self-filers skip most often, and it's the one that prevents the most expensive mistakes.
2. Filing the application
The application identifies the mark, the goods or services, the filing basis (already using the mark in commerce, or intending to), and a specimen showing the mark in actual use — or a statement of intent if you haven't launched yet.
3. Examination
A USPTO examining attorney reviews the application, usually several months after filing. If there's an issue — a conflicting mark, a descriptiveness problem, a specimen that doesn't show proper trademark use — you'll get an office action with a deadline to respond, typically three months.
4. Publication and registration
If the application clears examination, it's published for a 30-day opposition period where third parties can challenge it. No opposition, no problem: the mark moves to registration (for in-use applications) or a Notice of Allowance (for intent-to-use applications, which then requires proof of use before final registration).
Common Law Rights vs. Registered Rights
Plenty of business owners assume a state LLC filing or a "TM" symbol next to their logo means the same thing as a registered trademark. It doesn't.
- LLC formation only checks that your exact legal name isn't already taken by another entity in that state — it doesn't protect your brand or logo at all
- The TM symbol can be used by anyone claiming common-law rights, registered or not — it signals a claim, not a legal status
- The ® symbol is reserved for marks that are actually federally registered — using it prematurely can hurt you in an infringement dispute
- Common-law rights are real but geographically limited to where you've actually built a reputation, and much harder and more expensive to enforce than a federal registration
Maintaining a Trademark After It's Registered
Registration isn't a one-time event — a trademark has to be maintained, or it lapses.
- Between years 5–6: file a Declaration of Use to confirm the mark is still in active use
- Every 10 years: file a renewal (combined with another Declaration of Use) to keep the registration alive
- Ongoing: actively police your mark — unaddressed infringement can weaken your rights over time, a legal concept called dilution
Missing a maintenance deadline is one of the most common (and most avoidable) ways businesses lose a registration they spent time and money getting in the first place.
Minnesota Examples
Trademark law is federal, but where a business is located still shapes how these issues actually come up. A few Minnesota-specific scenarios we see often:
The well-known Minnesota brand
Minnesota is home to some of the most recognized trademarks in the country — Target's bullseye, 3M's name and logo, General Mills' cereal box characters. These marks are registered across dozens of classes precisely because these companies expanded into new product lines over decades. It's a useful reminder that a registration filed narrowly today can be expanded later as the business grows — but only if the original filing and brand strategy were built with that in mind.
The Minneapolis–St. Paul name collision
A common scenario locally: two unrelated businesses in the Twin Cities metro pick similar names — a coffee shop in Northeast Minneapolis and a roastery in St. Paul, for example — without either one registering. Neither has a strong claim against the other under common law, and the longer both operate, the messier a later dispute becomes. A clearance search before opening (not after) is what prevents this.
The Minnesota Secretary of State mix-up
We regularly talk to Minnesota business owners who registered their LLC with the Secretary of State's office and assumed that covered their brand name. It doesn't — Secretary of State filings and USPTO trademark registrations are entirely separate systems serving different purposes. An LLC name can be approved by the state and still infringe someone else's federally registered trademark.
Frequently Asked Questions
Do I need a lawyer to file a trademark?
No — the USPTO allows self-filing. But most rejected applications are self-filed, usually over avoidable issues like a weak specimen, the wrong filing basis, or a mismatched goods description. An attorney catches these before they cost you a filing fee and months of delay.
How long does it take to register a trademark?
Typically 8–14 months from filing to registration with no complications. Initial USPTO review alone now takes several months, and any office action, opposition, or missed deadline extends the timeline further.
What's the difference between TM, SM, and the ® symbol?
TM and SM are common-law symbols anyone can use to claim rights in a brand or service name — no registration required. The ® symbol is reserved for marks that are actually federally registered; using it too early can undermine an application or a later infringement claim.
Does forming my LLC in Minnesota protect my business name?
No. A Secretary of State filing only confirms no other Minnesota entity has that exact legal name — it doesn't stop a business in another state from using a similar brand, and gives you no grounds to stop anyone from using it. Only a trademark protects the brand itself.
Can I trademark a name that's already in use in another state?
Sometimes — it depends on what rights the existing user has and where. A thorough clearance search before filing is how you find out whether a name is actually available before investing in a brand around it.
What happens if I don't register my trademark?
You still hold common-law rights where you actually use the mark, but they're weaker and harder to enforce. Without federal registration, there's no nationwide priority, no listing to block later filers, and a much tougher fight if you ever need to stop someone from copying your brand.
Conclusion
Trademark law comes down to one practical question: does the law recognize your brand as yours, everywhere, before someone else claims it first? Common-law use gives you a narrow answer. Federal registration gives you a strong one.
The businesses that run into trouble almost always skipped the same two steps — a real clearance search before picking a name, and registration before scaling the brand. Both are far cheaper to do upfront than to fix after the fact.
Talk to a Minnesota Trademark Attorney
Twin Cities Trademarks handles clearance searches, filings, and registration for businesses across Minnesota and nationwide, at flat-fee pricing built for budget-conscious founders.