Key takeaways
- Do not reply in the first 48 hours — read the deadline and preserve your evidence.
- Check whether the sender's mark is registered, live, and actually close to yours.
- Options range from comply, to negotiate coexistence, to a reasoned rejection.
- Silence is the one response that reliably makes things worse.
What to do in the first 48 hours
- Read the letter carefully and note the deadline for response. Missing a deadline can weaken your position even if the claim is weak.
- Preserve all evidence of your use. Save screenshots, packaging, invoices, advertising dates, domain registration dates, and social media posts with timestamps.
- Do not contact the sender emotionally or admit wrongdoing. A hasty apology or explanation can be used against you later.
- Do not ignore the letter. Silence is often read as disregard for the trademark owner's rights and can escalate the dispute.
- Mark your calendar for the response deadline and schedule a consultation with a trademark attorney before you reply.
Deadlines are real
Some letters threaten immediate action, but most give a reasonable response window. Use that time to investigate. The worst move is to wait until the deadline and then react in a panic.
How to assess whether the claim has merit
Not every cease-and-desist letter is backed by a valid registration or a winning legal argument. Before you decide whether to fight, comply, or negotiate, look at the facts on both sides.
| Question | Why it matters |
|---|---|
| Does the sender have a federal registration? | A federal registration is stronger than common-law rights. Check the USPTO TSDR record for status and maintenance. |
| Are the goods or services related? | The closer the goods, the stronger the claim. Delta faucets and Delta airlines coexist because the goods are unrelated. |
| How similar are the marks? | Look at sound, appearance, meaning, and commercial impression. Exact matches are not required for a claim. |
| Did you use the mark first? | If you used the mark in a geographic area before the other party, you may have common-law priority in that region. |
| Is the mark generic or descriptive? | A weak mark gets less protection. Descriptive or generic terms are harder to enforce. |
Your response options
Negotiate a coexistence agreement
If the parties operate in different channels or geographies, a written agreement can define boundaries and avoid litigation.
Modify your branding
Sometimes the cheapest path is a name or logo change, especially if the dispute is early and your investment is still small.
Challenge the claim
If the registration is weak, abandoned, or the goods are unrelated, you may refuse to comply and explain why. A lawyer should draft this response.
Seek a declaratory judgment
In rare cases you may file a lawsuit asking a court to declare that your mark does not infringe. This is a last resort and usually expensive.
What not to send or do
- Do not send your own cease-and-desist back unless you have a lawyer advising you. Amateur demand letters often backfire.
- Do not take down your website or social media unless you have decided to rebrand. Deleting evidence can hurt your defense.
- Do not sign any agreement or make any payment without understanding what rights you are giving up.
- Do not assume the claim is valid just because it comes from a law firm. Verify the registration and the facts.
- Do not post about the dispute publicly. Social media can become evidence in litigation.
When to hire a trademark attorney
You can handle very minor disputes yourself, but most cease-and-desist letters deserve at least one consultation. Bring a lawyer in when the sender has a federal registration, the deadline is short, the damages could be significant, or you believe you have priority rights and want to push back.
A lawyer can also help you avoid the common mistake of over-sharing in your reply. The tone and content of the first response often determine whether the dispute escalates or settles.
Frequently asked questions
- Do I have to stop using my mark immediately?
- Only if a court orders you to stop, or if you voluntarily agree to stop as part of a settlement. A cease-and-desist letter is a demand, not a court order. However, continuing to use the mark after a well-founded claim can increase your exposure.
- Can I ignore a cease-and-desist letter if I think it is wrong?
- Ignoring it is risky. Even a weak claim can escalate to a lawsuit or a USPTO opposition if the sender believes you are not taking it seriously. A short, factual response is usually better than silence.
- How much does it cost to respond to a cease-and-desist letter?
- A lawyer's response letter typically ranges from a few hundred to a few thousand dollars, depending on complexity. Negotiation, coexistence agreements, or litigation cost more. The sooner you get advice, the cheaper the resolution usually is.
- What if I used the mark before they registered it?
- Prior use in a specific geographic area can give you common-law rights in that area, even if the other party later obtained a federal registration. This is a fact-specific defense that a trademark attorney should evaluate.