You Received a Trademark Cease-and-Desist Letter. Don't Panic.
Received a cease and desist letter over a trademark? Learn what the letter really is, how to check the claim's strength, and how to respond without panicking.
You opened an email — or worse, a certified envelope on law-firm letterhead — telling you that your business name infringes someone’s trademark, demanding you stop using it within fourteen days, destroy your inventory, and hand over your domain. Your stomach dropped. Here’s the thing the letter is designed to hide: at this moment, nobody has sued you, no court has ruled on anything, and you have more options than the letter admits. This guide walks through how to respond to a cease and desist letter over a trademark: what the letter actually is, how to size up the claim, your four realistic response paths, and when the fight is worth it.
What the letter actually is (and isn’t)
A cease-and-desist letter is an attorney’s opening move in a negotiation. It asserts that the sender owns trademark rights, claims your use infringes them under the Lanham Act (15 U.S.C. § 1114 for registered marks, § 1125(a) for unregistered ones), and demands that you stop — usually with extras like destroying goods, transferring domains, and accounting for profits.
What it is not:
- A court order. No judge has seen it. You cannot be held in contempt for “violating” it.
- A lawsuit. Filing a federal trademark case costs the sender a $405 filing fee and, far more importantly, tens of thousands of dollars in attorney time. Many senders never intend to spend that.
- A neutral statement of the law. It’s advocacy. Letters routinely overstate the sender’s rights and your exposure.
The deadline is psychology, not law. A “respond within 10 days or we will pursue all available remedies” line creates urgency because urgency produces capitulation. Nothing automatic happens on day 11. That said, the letter does one legally meaningful thing: it puts you on notice. If a court later finds you infringed, use that continued after notice can be branded willful, which colors damages and can support an attorney-fee award in “exceptional cases” under 15 U.S.C. § 1117(a). So you can take reasonable time — you just can’t pretend you never got it.
This letter is one of several ways an IP accusation can arrive; for the full map of demand letters, takedowns, and lawsuits from the accused side, see the what to do when you’re accused of IP infringement hub.
First 48 hours: what NOT to do
Before any strategy, avoid the unforced errors:
- Don’t call the sender in anger. Everything you say can show up as an exhibit. An emotional “I’ve been using this name for years and I’m not stopping” reads very differently in a complaint.
- Don’t admit anything. “I didn’t know about your trademark, I’m so sorry” feels polite and functions as a confession of copying-adjacent facts. Say nothing substantive until you’ve assessed the claim.
- Don’t quietly destroy or edit things. Deleting pages, scrubbing social posts, or trashing inventory can look like spoliation of evidence if litigation follows. Preserve everything as-is.
- Don’t ignore it and hope. You may ultimately choose not to respond — but that should be a decision made after triage, not a default made from avoidance.
A one-line acknowledgment — “We received your letter and are reviewing it with counsel; we’ll respond by [date]” — costs nothing, buys weeks, and admits nothing.
Triage: is their claim actually any good?
Most of the letter’s power evaporates or hardens based on three questions you can start answering yourself.
1. Is their mark registered — and valid?
Search the sender’s claimed mark on the USPTO’s TSDR database (tsdr.uspto.gov). Check:
- Is it actually registered, or merely applied-for (or nothing at all)? A pending application or pure common-law claim is a much weaker opening hand.
- What goods and services does the registration cover? Trademark rights are not ownership of a word for all purposes — they attach to specific goods/services. A registration for “financial consulting” says little about your bakery.
- Is the registration vulnerable? Marks that are merely descriptive, generic, abandoned, or procured by fraud can be attacked in a TTAB cancellation proceeding. A registration under five years old is easier to cancel than an “incontestable” one.
2. Who used it first?
U.S. trademark rights ultimately flow from use in commerce, not from registration alone. If you were using your name in your geographic area before the sender’s registration or first use, you may have priority — at least a protected zone of common-law rights under the senior-user doctrines. Dig out your receipts: first invoices, domain registration dates, archived website captures, old marketing. Priority disputes are exactly where the defenses covered in someone-using-my-business-name run in both directions — that guide’s enforcement analysis is the mirror of your defense.
3. Is there really a likelihood of confusion?
Infringement requires that consumers are likely to be confused about source, sponsorship, or affiliation. Courts weigh multi-factor tests (the DuPont factors at the USPTO; Sleekcraft in the Ninth Circuit, Polaroid in the Second), which boil down to:
- Similarity of the marks in sight, sound, and meaning
- Relatedness of the goods/services — do you compete or occupy adjacent lanes?
- Strength of their mark — coined words like “Xerox” get broad protection; descriptive terms like “Best Plumbing” get almost none
- Channels and customers — do you sell in the same places to the same people?
- Evidence of actual confusion — misdirected emails, confused reviews
- Your intent — did you pick the name knowing about theirs?
“DELTA” for faucets, an airline, and dental insurance coexist because nobody’s confused. If your triage says the marks differ, the industries don’t touch, or their term is descriptive, the letter is overreach — a pattern common enough that it has a name, trademark bullying, and was the subject of a 2011 USPTO report to Congress.
Your four response options (and the real risks of each)
1. Comply (rebrand). Cheapest legal path, sometimes the smartest business path — see the rebrand math below. If you comply, do it through a negotiated agreement: get a written release, a reasonable phase-out period (60–120 days to sell existing inventory is a normal ask), and no admission of infringement. Never just silently rebrand; you want the dispute closed, not dormant.
2. Negotiate coexistence. Often the best outcome for genuinely gray cases. A coexistence agreement lets both sides keep operating with guardrails — different logos, defined industries or territories, agreed keyword practices. Many “scary” letters are really invitations to this conversation; the sender’s lawyer drafted for maximum demand expecting a counter.
3. Push back. A responsive letter from your attorney laying out your priority evidence, the weakness of their mark, and the absence of confusion ends a surprising share of disputes — especially bully campaigns, which are priced on targets folding. Pushing back can also include going on offense at the Trademark Trial and Appeal Board: a cancellation petition against their registration, or an opposition if their application is still pending. The risk: escalation. A confident sender may respond by suing.
4. Ignore. Viable only when triage shows a hollow claim from a sender with no litigation history, and you’d accept the small risk of being sued. The costs of guessing wrong are real: you lose the cheap-settlement window, and every post-notice sale becomes potential willfulness evidence.
The hidden fifth option: declaratory judgment
If a sender keeps rattling the saber without suing, you can sue them — a declaratory judgment action under 28 U.S.C. § 2201 asking a federal court to declare that you don’t infringe. Since MedImmune, Inc. v. Genentech, Inc., 549 U.S. 118 (2007), a concrete threat like a demand letter can create the required controversy. DJ actions let you pick the forum and flip the tempo, which is exactly why sophisticated senders write letters that threaten just softly enough to avoid triggering one. Even the credible mention of a DJ action is leverage in negotiation.
Rebrand math vs. fight math
Strip the emotion out and run both columns:
| Rebrand | Fight | |
|---|---|---|
| Direct cost | New logo/site/signage/packaging: often $2,000–$25,000 for a small business; far more with physical inventory | Attorney response letter: ~$1,500–$5,000; negotiated resolution: ~$5,000–$25,000; litigation through trial: routinely mid–six figures |
| Hidden cost | Lost SEO, reviews, and customer recognition tied to the old name | Months–years of distraction; discovery reaching your emails and finances |
| Upside | Certainty; a name you fully own | Keep the brand equity you’ve built |
| Downside | Feels like losing even when it’s winning | You can spend six figures and still lose |
Two honest heuristics. If you’re under two years old with modest brand equity and their claim is colorable, rebranding is usually the rational call — the name is rarely worth the fight yet. If you’ve got a decade of goodwill, priority evidence, and a weak claim against you, folding gives away your most valuable asset to a bluff. Note also that general business insurance sometimes covers “advertising injury” claims like trademark disputes — check your policy before assuming you’re paying defense costs out of pocket, as covered in does insurance cover IP claims.
Where the dispute goes if it escalates
Two tracks, very different stakes. The TTAB (oppositions and cancellations) decides only who gets or keeps a registration — it can’t award damages or order you to stop selling. It’s slower but far cheaper than court, and often becomes the settlement venue for registration-centric disputes. Federal court is where injunctions, profits, damages, and fee awards live — and where both sides’ costs explode, which is why the overwhelming majority of trademark disputes settle before trial. Browsing real outcomes in the trademark case archive is a useful calibration for what courts actually do with claims like the one aimed at you.
If you want the calmer, first-principles version of this topic — what a cease-and-desist letter is, why ignoring one is risky, the response options in overview — our shorter trademark cease-and-desist letter primer covers that ground. This guide is the tactical layer on top of it: the 48-hour rules, the triage tests, and the math.
The bottom line
A trademark cease-and-desist letter is an opening bid, not a verdict. Acknowledge it briefly, admit nothing, preserve everything, and triage the claim: registration and validity, priority of use, and genuine likelihood of confusion. Then choose deliberately among complying (with a release and phase-out), negotiating coexistence, pushing back (including TTAB counterattacks or declaratory-judgment leverage), or — rarely — ignoring it. Run the rebrand math against the fight math without ego, and get a trademark attorney’s read early: an hour of triage advice is cheap insurance against both overpaying a bully and underestimating a real claim.
This article is general legal information for educational purposes only. It is not legal advice, does not create an attorney-client relationship, and may not reflect the most current law in your area. Trademark disputes turn on specific facts. For advice about your situation, consult an attorney licensed in your jurisdiction.
Frequently asked questions
Is a trademark cease-and-desist letter legally binding?
No. A cease-and-desist letter is a private demand written by the other side's lawyer, not an order from a court or the USPTO. You are not legally required to comply with it or even to respond by its stated deadline. That said, ignoring a letter carries real risks: the sender may sue, and once you're on notice of their claim, continuing the accused use can support a finding of willful infringement, which increases damages exposure under the Lanham Act.
How long do I have to respond to a cease-and-desist letter?
The deadline in the letter — often 10 or 14 days — is chosen by the sender and has no legal force. Nothing bad automatically happens when it passes. A short, polite reply saying you've received the letter and are reviewing it with counsel buys weeks in most cases. What you shouldn't do is let the letter sit for months while continuing the accused use, because that delay can be painted as willfulness if the dispute ends up in court.
Can I ignore a trademark cease-and-desist letter?
You can, but it's usually the worst of the four options. Many letters do fizzle when ignored, especially mass-mailed ones, but you won't know which kind you have until you've assessed the sender's mark, your priority of use, and the real likelihood of confusion. If the sender's claim has teeth and they sue, your silence looks bad, you've lost the chance to negotiate cheaply, and your continued use after notice becomes evidence of willful infringement.
What if the company sending the letter is just bullying me?
Trademark bullying — a mark owner asserting rights far beyond what the law gives them, counting on smaller targets to fold — is common enough that the USPTO studied it at Congress's request in 2011. Signs include a demand that you stop using a descriptive or generic term, a mark in a completely unrelated industry, or a sender with a pattern of mass enforcement. Pushback backed by a lawyer's letter explaining why confusion is unlikely often ends these disputes, because bullies price their campaigns on targets not fighting.
