What is ttab opposition & cancellation support?
When someone opposes your mark — or you need to oppose theirs — the evidence file and timeline behind the attorney who argues it.
A TTAB opposition or cancellation is not a form you fill in — it is inter partes litigation run inside the USPTO instead of a federal court, and it runs on the same discipline: pleadings, discovery, testimony, briefing, a written decision, and an appeal right for the losing side. The only cheap part of the whole proceeding is the window to start it. An opposition to someone else's published mark has to be filed within 30 days of publication in the Official Gazette, extendable by request but not indefinitely; a cancellation petition against an existing registration can usually be filed later, though several grounds — likelihood of confusion chief among them — carry their own statutory clock under Lanham Act §14. Miss the window and the right to oppose is gone regardless of how strong the underlying case is.
Once a proceeding is instituted, it does not resolve quickly. TTAB pleadings, disclosures, discovery, trial testimony periods and briefing commonly run twelve to twenty-four months before a panel of Administrative Trademark Judges issues a decision, with an optional oral hearing along the way and a right of appeal to the Federal Circuit or a civil action after that. What decides the case at every stage is the same thing a federal jury would look at: evidence of actual use, actual confusion, actual dates, actual documents — not the strength of an argument stated without anything behind it.
Who does what
TTAB proceedings are attorney work — mandatory for foreign-domiciled parties; CapEasy builds the evidence, chronology and exhibit file the attorney argues from.
Who does what
| Your CapEasy team | TTAB opposition & cancellation support, the reconciliations and reporting behind it, and the questions list that keeps it honest. |
| Your CPA or enrolled agent | Everything that carries a licence in United States — rendered exactly as written: issue compilation, review or audit reports — those are restricted to licensed cpa firms. |
| You | One conversation with one named person, and the decisions that are genuinely yours. |
TTAB opposition & cancellation support in United States
A foreign-domiciled party must be represented by a US-licensed attorney in any TTAB proceeding
Under 37 CFR §2.11(a), effective since August 3, 2019, any trademark applicant, registrant, or party to a TTAB proceeding whose domicile is outside the United States must be represented by an attorney licensed to practice law in the US. This applies to both sides of an opposition or cancellation — the party bringing it and the party defending it — and it applies to every filing in the case, not just the initiating document. Every TTAB submission for a foreign-domiciled client is signed, filed, and argued by that attorney of record throughout.
Opposition has a 30-day window; cancellation grounds carry their own clock
A Notice of Opposition must be filed within 30 days of the mark's publication in the Official Gazette, though extensions of time (30/60/90-day increments) can be requested before that window closes. A Petition to Cancel can generally be filed any time after registration for grounds like fraud or genericness, which carry no statutory time limit, but likelihood-of-confusion grounds are generally subject to a 5-year window from registration under Lanham Act §14. Missing either deadline forecloses the proceeding regardless of the merits — the clock, not the argument, decides whether the door is even open.
The filing fee is per class, and it is only the entry cost
The Notice of Opposition and the Petition to Cancel both carry a $600/class fee filed electronically through TTAB Center ($700/class on paper), per the USPTO fee schedule last revised August 1, 2026. That fee opens the proceeding; it does not cover the pleadings, discovery, testimony and briefing that follow over the next one to two years, which is where a proceeding's real cost and real evidentiary demands sit.
The case is decided on evidence submitted during a testimony period, not on the pleadings
A TTAB decision turns on what gets entered into the record during the trial phase — testimony (often by declaration under the Board's rules), documentary evidence, and disclosures exchanged in discovery — not on the strength of the initial Notice of Opposition or Answer. Dates of first use, specimens showing the mark as actually used, correspondence establishing actual confusion, and prior USPTO filings all have to be authenticated and entered properly. A well-pleaded case with a thin evidentiary record loses to a thinner case with a complete one.
What your CPA or enrolled agent receives from us
- A full chronology of the mark's use — first-use-anywhere and first-use-in-commerce dates, sourced to dated documents (invoices, shipping records, dated marketing materials, archived web pages), not recollection.
- The specimen file: examples of the mark as actually used in commerce across the relevant time period, organized by date and by goods/services class.
- A copy of the opposed or challenged application/registration pulled from USPTO TSDR, with its full prosecution history (Office Actions, responses, amendments) attached.
- For opposition: the Official Gazette publication record and the exact publication date the 30-day (or extended) window runs from.
- For cancellation: the registration date and, where a likelihood-of-confusion ground is in play, confirmation of where that filing sits against the Lanham Act §14 five-year window.
- A goods/services description comparison — the opposed or challenged mark's classes and identification language set side by side with the client's own, mapped to USPTO ID Manual terms where possible.


