Proof of use: documents to prepare
When a trade mark's use is challenged, the certificate of registration decides nothing. What decides the outcome is evidence of genuine use: dated invoices, packaging, marketing material, and independent confirmation that goods or services reached the market under that mark, for the period and the goods actually at stake.
What triggers the request
Proof of use rarely arrives out of nowhere. It surfaces when an opponent challenges a new application, when a third party seeks cancellation for non-use, or when a licence dispute forces a party to show the mark was ever put to real commercial use. The trigger is always someone else's move, not a routine filing on your own initiative.
Once the request lands, the clock starts. There is no grace period for gathering material that should already sit in a folder somewhere. Firms that keep sales and marketing records organised by mark and by product line answer this request in days. Firms that do not spend weeks reconstructing history from email threads.
Documents you need to prepare
Evidence has to be dated, attributable to a specific good or service, and legible without extra explanation. The table below sets out the core categories and the mistake that most often weakens each one.
| Document type | What it shows | Common pitfall |
|---|---|---|
| Invoices and sales records | Volume and continuity of trade under the mark | Undated or internal-only records carry little weight |
| Packaging, labels, product photographs | The mark as it actually appears on the market | A stylised variant shown with no link to the registered form |
| Advertising and marketing material | Market-facing use, not internal planning | Draft material with no publication date |
| Distribution and licence agreements | Use by a third party attributable to the owner | No clear connection to the mark or to the relevant goods |
| Independent evidence: press, trade fair listings, marketplace pages | Corroboration from outside the owner's own paperwork | Relying only on self-generated documents |
Building the evidence file resembles other document-heavy reviews, such as an Open source compliance review: source material has to be sorted, dated and matched to a specific claim before it carries any weight.
How the process unfolds
The stages are consistent across most disputes of this kind, even if the forum and the exact calendar differ.
- The other side raises non-use, either as a defence or as a separate challenge.
- The deciding office sets a fixed window for submitting evidence.
- The evidence is filed as a structured bundle: dated exhibits, translated where the proceedings require it, each item pointing to a specific good or service.
- The other side responds, or stays silent, within its own window.
- The office rules on sufficiency: whether use was genuine, for which goods, and in which territory.
When the other side is based abroad, notice still has to reach them before any deadline can run. That mechanic follows the same logic as Cross-border service of documents, and the calendar for a response starts only once service is confirmed.
What to do
- Instruct whoever holds the sales data to pull records for the full relevant period, not only the most recent quarter.
- Match every document to a specific good or service on the registration list; unmatched evidence is discounted at the review stage.
- Date every exhibit before submission. Undated material is treated as unproven, regardless of its content.
- Translate any evidence not in the language of the proceedings before the deadline, not after it has passed.
- Keep a working index of the evidence file so each item can be defended individually if challenged.
Who decides, and by when
The deciding body is the office running the proceedings in which the challenge was raised, not a court, unless the matter has already moved to litigation. That office sets its own period for filing evidence and, in most cases, allows one extension on request, filed before the original deadline expires rather than after. A second extension is rarely granted, and never as a matter of routine.
The decision itself addresses sufficiency, not motive: whether the material shown amounts to genuine use, for which part of the goods list, and within which territory. Nothing beyond that question is normally decided at this stage.
Forks: how the answer changes
If you are the registered owner asked to prove use, assemble evidence across the full range of registered goods, not only your flagship product; a partial file produces a partial result.
If you are the party raising non-use, check the relevant period before filing; a challenge lodged too early is dismissed on a technicality, with no assessment of the substance at all.
If the evidence you hold only covers part of the goods list, expect a partial finding rather than an all-or-nothing outcome; the mark may survive for some goods and fall for others.
The point of no return
Once the filing deadline passes without a timely extension request, the window closes. Late evidence is, as a rule, disregarded, and there is no informal route back in. The only realistic safeguard is treating the original deadline as final from the outset, and requesting an extension the moment it becomes clear the file will not be ready in time.
The underlying logic is not limited to trade marks. What reserve token issuance how it is proved means follows a similar pattern: a claim is only as strong as the record standing behind it, prepared before, not after, the moment it is tested.
What this page does not cover
This page describes the mechanics of assembling and filing proof of use. It does not assess whether your specific evidence is likely to succeed, and it does not cover disputes that have already escalated into litigation over infringement rather than use. Where the underlying registration itself is in doubt for reasons unrelated to use, our Asset report when maintenance is in doubt: the deadline matters covers the diagnostic side of that separate decision.
Verified
This page describes administrative practice around proof of use requests, not a specific statutory provision, in line with our policy of naming no article or regulation number on procedural pages. Case-specific timing and forum depend on where the challenge is raised; confirm both before relying on any date mentioned here.
Related publications
A related procedure covers How surrender and partial surrender trade mark documents to prepare, for portfolios moving in the opposite direction, out of a register rather than into a dispute.
FAQ
How long does proof of use take in practice?
The filing window itself is fixed and short by design. The overall timeline depends on whether an extension is requested, whether the other side responds, and how many goods and territories the evidence has to cover.
Which documents are needed to start?
At minimum: dated sales records, packaging or product images showing the mark as used, and any independent material such as press coverage or marketplace listings. Everything else supplements this core set.
What happens if the other side does not respond?
Silence does not end the matter automatically. The office still reviews the evidence filed and decides on its sufficiency; a non-response from the other side does not itself prove or disprove genuine use.
If the immediate problem is an office action rather than a use challenge, see When an office action refuses your application explained first.