Invalidity and revocation: what the decision maker looks at
An invalidity or revocation decision turns on three questions: was the mark valid at the moment it was registered, has it since lost the distinctiveness it needs to survive, and has the holder actually used it as claimed. The decision maker checks the register entry, the filing history, and the evidence each side submits, then weighs continuity of ownership against gaps in use or descriptiveness.
What changes once a challenge is filed
Filing a challenge does not suspend the mark automatically. The register entry stays live while the case runs, so licensing, enforcement, and renewal deadlines continue as before. What changes is risk: any deal signed while the mark is contested carries a contingent liability that a counterparty will want addressed in writing.
This is where indemnity wording in a supply or licence agreement earns its place. A clause drafted before the challenge started rarely covers a mark that is later cancelled, which is why IP indemnity negotiation is usually revisited once proceedings are known to either party.
A second practical effect touches evidence. Once a challenge is filed, every use of the mark from that point forward becomes potential proof in the case. Marketing material, invoices, and packaging samples should be kept in dated, retrievable form rather than assumed to exist somewhere in an inbox.
What to do
- The mark holder gathers proof of genuine use: dated invoices, packaging, advertising, and distribution records for the relevant period.
- The challenger sets out the specific ground: earlier right, descriptiveness, bad faith, or non-use, with supporting documents attached to the filing.
- Both sides check the register for the current owner of record; a challenge against the wrong party is dismissed on that basis alone.
- Counsel prepares a response timeline against the deadline set by the decision maker, since a missed response narrows the options that remain.
- Where use is disputed, the holder assembles evidence by year and by market, not as a single undated bundle.
- Either party requests an extension where genuinely needed; a request filed early is treated differently from one filed on the deadline itself.
Who decides, and how long it takes
The first decision comes from the office that maintains the register in question, acting on the file submitted by both sides. Where either party disagrees, an appeal moves the matter to a board or court that reviews the same evidence with fresh eyes rather than starting the file again.
| Stage | Typical driver of length |
|---|---|
| Filing and admissibility check | Completeness of the challenge and correct party named |
| Evidence exchange | Volume of use evidence and number of extensions requested |
| First decision | Complexity of the ground raised and whether a hearing is held |
| Appeal, if lodged | Court or board calendar and scope of the points appealed |
A straightforward non-use case with no appeal moves fastest. A case combining several grounds, or one where the holder disputes every piece of evidence, extends the timeline at each stage above.
Common branching scenarios
If the challenge rests on non-use, then the outcome depends almost entirely on what the holder can produce. Genuine use in even one relevant market for the required period can defeat the whole claim.
If the other side raises a claim for damages without producing supporting figures, the decision maker treats the assertion with caution rather than accepting it at face value; the pattern is close to what is described in Damages are demanded without evidence patent when the other, even though that note concerns a different right.
If the same mark also sits inside a cross-border offer of tokenised assets, the document check for that offer follows a separate track and a separate deadline, set out in How cross-border offer assessment token issuance documents to prepare; the two files should still be coordinated so that a cancellation in one does not surprise the team running the other.
If the ground is descriptiveness rather than non-use, the holder's argument shifts from proving use to proving distinctive character at filing, which is a different evidentiary task described separately.
What this page does not cover
This page does not set out the wording of any specific ground, the exact filing form, or the fee schedule that applies to a given register, since those details sit with the office concerned and change without notice on this page. It also does not cover the separate refusal stage that happens before registration, which follows its own logic.
Sources and limits
Figures on this page are limited to the stages and roles described above; no statute, regulation, or fee amount is quoted here, because a procedure description does not depend on a specific article number to be useful. Where a client needs a cancellation risk mapped against a wider asset file rather than a single mark, that mapping is covered separately in Asset report when a competitor claims priority in detail.
Last checked: this description reflects standing procedural practice at the time of writing and is reviewed periodically rather than tied to a single dated source.
FAQ
How long does invalidity and revocation take in practice?
A straightforward non-use case without an appeal is the fastest route. A case with multiple grounds, contested evidence, or an appeal to a board or court takes considerably longer, largely because each stage above adds its own exchange of documents.
Which documents are needed to start?
A challenger needs the register entry details of the mark being attacked and a clear statement of the ground relied on, with any supporting documents attached. A holder defending non-use needs dated proof of use organised by year and by market.
What happens if the other side does not respond?
A non-response does not end the case automatically. The decision maker typically proceeds on the file available, which usually favours the party that did respond, but the exact consequence depends on the stage at which silence occurred.
Related publications
How appeal against refusal trade mark what the decision covers the earlier stage, where the office has not yet granted registration at all.
Next step
If the ground you are facing is descriptiveness rather than non-use, the practical playbook differs and is set out in When a mark is challenged as descriptive in detail. If the dispute concerns a design rather than a word or logo mark, see When a design is copied by a competitor explained.