Common Trademark Mistakes That Cost Businesses Time and Money

By Hank FasthoffJune 9, 2026

A business that winds up in an expensive dispute, with an abandoned application, or loses the right to use its brand name typically made an avoidable mistake early in the process, usually before they consulted a trademark attorney. Some of those mistakes are expensive to fix, while others can't be fixed at all.

Following are the mistakes I see most frequently in my practice, and each of them has a cost measured in legal fees, rebranding expenses, lost business, or all of the foregoing.

Skipping the Clearance Search

The single most expensive trademark mistake is falling in love with a name and building a business around it without checking whether someone else got there first. A business owner picks a name, registers the domain, orders signage, prints business cards, launches a website, and starts advertising. Some time later, a cease and desist letter arrives from a company that registered the same or a confusingly similar mark years earlier, or otherwise has prior rights in the mark.

At that point, every option is expensive. The business can fight (trademark litigation can cost five to six figures in legal fees and costs), negotiate a coexistence agreement (the senior user holds all the bargaining power), or rebrand (throwing away every dollar invested in building recognition under the original mark). A comprehensive clearance search before launch may have identified the conflict and allowed the business to choose a different mark when the cost of rebranding was minimal.

A proper clearance search goes beyond typing the proposed mark into the USPTO's online database and looking at the results. A true trademark search includes searching for phonetic equivalents, foreign-language translations, design marks with similar visual impressions, common law uses that don't appear in the USPTO's registers, state registrations, and domain name registrations. The goal is to identify marks that could block registration or trigger a dispute down the road.

Choosing a Descriptive Name

Business owners naturally gravitate toward names that tell customers what the business does. A roofing company wants "Superior Roofing." An accounting firm wants "Precision Accounting." A dog grooming business wants "Clean Paws." These names feel like good marketing because they communicate the goods or services offered by the business.

Descriptive names, though, make weak trademarks. They can't be registered on the principal register without proof that consumers associate the descriptive phrase with one particular company (a legal standard called "secondary meaning" or "acquired distinctiveness"). Proving secondary meaning typically requires years of exclusive use of the mark, or proof of substantial advertising expenditures. Even after achieving registration, descriptive marks receive narrower protection because competitors are free to use the same words in their ordinary descriptive sense.

A business that regrets choosing a descriptive mark may discover the problem only after investing substantial time and money in the brand. The SUPERIOR ROOFING mark can't block or prevent a third party from using SUPREME ROOFING when both marks are merely descriptive of the goods or services or their characteristics and qualities. An owner who chooses a fanciful or arbitrary mark from the start would likely not face that problem.

Filing the Application Wrong

The USPTO trademark application asks questions that look simple but carry legal consequences that trip up applicants who file without an attorney. The two most common filing errors are selecting the wrong filing basis and misidentifying the goods or services.

Filing under Section 1(a) (use in commerce) when the mark isn't yet in use in interstate commerce, or filing under Section 1(b) (intent to use) when the mark is already in use, creates procedural complications that can delay or kill the application. The specimen of use must match the filing basis and show the mark being used in commerce, not on a mockup, prototype, or internal document.

The identification of goods and services defines the scope of the registration. An identification that's too narrow leaves room for competitors to use similar marks. An identification that's too broad invites a refusal from the examining attorney or a challenge from a third party. Getting this right requires understanding the USPTO's classification system and acceptable identification language, which is where many applications filed by non-lawyers fall apart.

Ignoring Office Actions

When the USPTO examining attorney finds a problem with an application, the office issues an office action explaining the refusal and giving the applicant three months to respond. A single three-month extension is available for a fee, but it's best to treat the initial deadline as the real one. Missing the response window results in abandonment of the application, and filing fees are not refundable.

The most common substantive refusals are likelihood of confusion with an existing registration (Section 2(d)) and descriptiveness (Section 2(e)(1)). Both of these refusals can be overcome with the right arguments and evidence, but the responses require legal analysis that goes beyond simply disagreeing with the examiner. An ineffective response wastes the opportunity to overcome the refusal and may result in a final refusal.

Using the Mark Inconsistently

A trademark registration protects the mark solely as depicted in the registration. Using the mark differently in commerce, adding words, changing the design, altering the spelling, or combining the mark with other elements in ways that change its commercial impression, can create a mismatch between the registration and actual use. That mismatch weakens the registration and can be used as evidence of abandonment in a cancellation proceeding. The Trademark Modernization Act added expungement and reexamination proceedings, which let any party ask the USPTO to cancel a registration for goods on which the mark was never used or wasn't in use when the application claimed it was.

Consistency also applies to the goods and services. If the registration covers "computer software for project management" and the company pivots to selling consulting services, the registration may no longer protect the mark. The owner may then need to file a new application for the new goods or services.

Failing to Monitor and Enforce

Registration grants the trademark owner the right to stop others from using confusingly similar marks, but the USPTO doesn't police the marketplace. The owner has to monitor for infringing uses and take action when they appear. Monitoring means watching the USPTO's Official Gazette for newly published applications, searching online marketplaces for counterfeit goods, and keeping an eye on competitors' branding in the owner's industry.

Failure to enforce can have consequences beyond the individual infringement. Courts look at whether a trademark owner has been vigilant in protecting its mark when evaluating the scope of protection. An owner who tolerates years of third-party use before suddenly filing suit may face arguments that the mark has been weakened by the owner's own inaction. In the worst case, failure to enforce can contribute to a finding that the mark has become generic.

Missing Maintenance Deadlines

Federal trademark registrations require periodic maintenance filings. Between the fifth and sixth year after registration, the owner must file a Section 8 declaration of continued use. Between the ninth and tenth year, and every 10 years after that, the owner must file both a Section 8 declaration and a Section 9 renewal. Missing these deadlines results in cancellation of the registration, though a six-month grace period with an added surcharge follows each filing window.

The USPTO sends courtesy reminders, but it's not required to do so, and the owner is solely responsible for tracking the deadlines regardless of whether a reminder is received from the USPTO. Businesses that let maintenance filings lapse often don't discover the cancellation of their registration until they need to enforce the mark and learn that their registration no longer exists.

Not Working with a Trademark Attorney

The mistakes referenced above are more likely to happen when a business owner handles the trademark process alone. DIY trademark filing services and online form generators fill in blanks on a form, but using an attorney to perform the analysis that goes into choosing a registrable mark, conducting a proper clearance search, drafting an identification of goods and services is typically the best route to take.

The cost of working with a trademark attorney upfront is a fraction of the cost of any one of the mistakes described above. A clearance search and application through an attorney typically runs a few thousand dollars. A rebranding triggered by a cease and desist letter, or trademark litigation triggered by a likelihood of confusion dispute, can cost tens or hundreds of thousands of dollars.