The trademark opposition period and the 30-day clock

Every US trademark application that survives examination is published for opposition in the Official Gazette. That publication starts a clock: 30 days in which anyone who believes they would be damaged by the registration can oppose it.

It is the cheapest moment in the entire lifecycle to stop a conflicting mark. It is also the easiest to miss, because nothing tells you it happened unless you're watching.

What publication means

Publication is not registration. It means an examining attorney reviewed the application, found no bar to registration, and the USPTO is now inviting the public to object before it issues.

For the applicant, it's good news. For anyone with a similar mark, it's the notice period — and the notice is published in a government gazette that nobody reads unless they're monitoring it.

The 30 days, and how to get more

From the publication date you have 30 days to either:

1. File a notice of opposition with the Trademark Trial and Appeal Board (TTAB), which starts an adversarial proceeding, or
2. File a request for an extension of time to oppose, which buys you more time to investigate or negotiate.

Extensions are routine and matter more than people expect. A first 30-day extension is granted on request. Further extensions are available, with the later ones requiring the applicant's consent or a showing of good cause — the total available runway is 180 days from publication.

That structure rewards acting early. A cheap extension request filed on day 25 preserves every option. Day 31 preserves none of them.

What an opposition actually is

An opposition is litigation before the TTAB — pleadings, discovery, evidence, briefing. It is far cheaper than federal court, but it is not a form you file and forget.

The most common grounds are:

• Likelihood of confusion — the applicant's mark is close enough to yours, on close enough goods, that consumers would be confused.
• Descriptiveness — the mark merely describes the goods and shouldn't be registrable.
• Priority — you used the mark in commerce first.

Many oppositions settle. A filed opposition, or even an extension request, often produces a coexistence agreement or an amended identification of goods that solves the problem without a decision.

If the window closes

Missing the window isn't fatal, but every remaining route is worse:

• Petition to cancel. Once the mark registers, you can petition the TTAB to cancel it. Broadly similar procedure, but you're now attacking a registration that carries a presumption of validity. Some grounds also become unavailable after five years of registration.
• Negotiate. Always available, but your leverage is lower once they hold a certificate.
• Federal court. Available, and dramatically more expensive.

This is why the 30-day clock is worth putting on a calendar with reminders rather than a to-do list.

Watching your own publication is a different thing

Two different windows get confused constantly:

• Your own mark published. Third parties have 30 days to oppose you. Nothing is required from you; you're waiting.
• A conflicting application published. This is your one chance to oppose them. Everything is required from you, and only during those 30 days.

They look identical in a status feed and mean opposite things. Thorgate dockets the second kind against the specific conflict that raised it and reminds you at 14, 7, 3, and 1 day out — a tighter ladder than the one used for longer statutory deadlines, because a 30-day window can open and close between two weekly summaries.

Checking where something stands

If you have a serial or registration number and want to know its current status and what window it's in, our status lookup translates the USPTO's status codes into plain English and shows the computed dates, free.