- Once the Canadian Intellectual Property Office (CIPO) reviews a trademark application and decides it appears to meet the requirements for registration, the mark is published, giving the…
- An opposition has to be based on specific legal grounds, not just general disagreement.
- CIPO publishes the approved application, opening a window during which anyone can file an opposition.
Getting a notice of opposition after months of waiting for your trademark application to move forward can feel alarming. It doesn't mean your application has failed — but it does mean someone has formally objected to your mark being registered, and the process now shifts from a straightforward government review into something closer to a legal dispute.
This article explains what triggers an opposition, the grounds someone might raise, and what the process generally looks like, whether you're the applicant defending your mark or the party doing the opposing.
What Triggers a Trademark Opposition?
Once the Canadian Intellectual Property Office (CIPO) reviews a trademark application and decides it appears to meet the requirements for registration, the mark is published, giving the public a window to review it. During that window, any person or business who believes the mark shouldn't be registered can file a formal statement of opposition, moving the matter to CIPO's Trademarks Opposition Board.
Opposition is most commonly filed by a business that believes the applied-for mark conflicts with its own existing trademark, brand, or trade name, but the legal grounds available go beyond simple "we had it first" arguments.
Common Grounds for Opposition
An opposition has to be based on specific legal grounds, not just general disagreement. Common ones include:
- Confusion with an existing trademark — the applied-for mark is confusingly similar to a mark the opponent already registered or is using.
- Lack of distinctiveness — the mark doesn't actually function to distinguish the applicant's goods or services from anyone else's.
- The applicant wasn't entitled to register it — for example, someone else was already using a confusingly similar mark first.
- Non-conformity with the Trademarks Act — technical grounds relating to how the application itself was filed or described.
- Bad faith — the application was filed for an improper purpose rather than a genuine intent to use the mark.
The Opposition Process, Step by Step
- Publication. CIPO publishes the approved application, opening a window during which anyone can file an opposition.
- Statement of opposition filed. The opponent formally sets out the specific grounds it's relying on.
- Counter statement. The applicant responds, generally denying the grounds and confirming its intention to defend the application.
- Evidence stage. Both sides can file evidence supporting their position — this might include evidence of the opponent's prior use or reputation, and evidence of the applicant's own use and good-faith adoption of the mark.
- Written arguments and hearing. Each side files written submissions, and the matter may proceed to an oral hearing before the Trademarks Opposition Board.
- Decision. The Board issues a decision either rejecting the opposition, so the application proceeds to registration, or upholding it in whole or in part, so the application is refused in whole or in part.
Timelines at each stage vary and can sometimes be extended — confirm current procedural deadlines with a trademark professional rather than relying on a fixed schedule, since these can change.
What This Means If You're the Applicant
Being opposed doesn't automatically mean you'll lose your application, but it does mean you now need to actively respond and, generally, put together evidence supporting your position — silence or missing a procedural deadline can result in your application being treated as abandoned. This is also the point where many applicants bring in a trademark lawyer or agent if they haven't already, since opposition proceedings function much like a formal legal dispute.
What This Means If You're the One Opposing
Filing an opposition is a real legal proceeding, not an informal complaint — it requires identifying specific legal grounds, meeting procedural deadlines, and generally supporting your position with evidence. Businesses considering an opposition should weigh the cost and time involved against the actual commercial risk the new mark poses, and consider whether reaching out directly to the applicant, or other options, might resolve the concern faster.
Frequently asked questions
Can an opposition be settled without going through the whole process?
Yes — many oppositions are resolved by negotiation between the parties, sometimes with the applicant narrowing the goods or services described, or the parties reaching a coexistence agreement, before reaching a full hearing and decision.
What happens if I miss a deadline during the opposition process?
Missing a procedural deadline can have serious consequences, including having your application treated as abandoned or losing the ability to file certain evidence — this is one of the main reasons applicants involved in an opposition generally want professional help managing the file closely.
Does losing an opposition mean I can never use the mark?
Not necessarily — losing an opposition generally means the specific application is refused, which is different from a court order prohibiting all use of the mark. But it's a strong signal of a real conflict, and continuing to use the mark without registration carries its own risks, including potential infringement exposure to the opponent.
Is opposition the only way to challenge a registered trademark?
No — opposition only applies to pending applications before registration. Once a mark is registered, there are separate processes for challenging it, such as expungement proceedings, which raise different considerations.
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