A trademark approved by the U.S. Patent and Trademark Office is published for opposition for 30 days. That clock starts the day the mark appears in the weekly Trademark Official Gazette, and it can be stretched to a maximum of 180 days from the publication date if a potential opposer files timely requests for more time.1eCFR. 37 CFR 2.102 – Extension of Time for Filing an Opposition If the window closes with no Notice of Opposition on file, the application moves toward registration.
When the 30 Days Start
After a USPTO examining attorney approves an application, the mark is published in the Trademark Official Gazette, an online publication issued every Tuesday that lists the bibliographic details and a representative image for each mark published that week.2United States Patent and Trademark Office. Trademark Official Gazette Publication is not registration. It is a 30-day public notice period, and anyone who believes the mark’s registration would damage their own trademark rights can step forward and challenge it during that window.3Office of the Law Revision Counsel. 15 USC 1063 – Opposition to Registration
During that 30 days, a potential opposer has two choices: file a formal Notice of Opposition, or file a request for more time to oppose. Anyone can file during the original 30-day period. Once an extension is granted, though, only the party who obtained it (or someone in legal privity with them) can file during the extended time.4United States Patent and Trademark Office. Opposition Period and Extensions of Time to Oppose
How Extensions Stretch the Window to 180 Days
Thirty days is often too short to investigate a conflict, retain counsel, or attempt settlement. The regulations let a potential opposer request extensions from the Trademark Trial and Appeal Board, up to a hard cap of 180 days from publication. Electronic requests carry no government fee. Paper requests require a Petition to the Director with accompanying fees.1eCFR. 37 CFR 2.102 – Extension of Time for Filing an Opposition
The tiers work like this:
- A first request for 30 more days is granted automatically, with no reason required.
- A first request for 90 more days is available instead, but only on a showing of good cause. A 60-day first extension is not an option.1eCFR. 37 CFR 2.102 – Extension of Time for Filing an Opposition
- After an initial 30-day grant, a second request for 60 more days also requires good cause. Investigating the claim, consulting counsel, or negotiating with the applicant all qualify.
- After 90 total days of extensions, a final 60-day extension is possible only with the applicant’s written consent or a showing of extraordinary circumstances.1eCFR. 37 CFR 2.102 – Extension of Time for Filing an Opposition
Once the 180-day ceiling is reached, no further extensions are available under any circumstances.
Watching the Gazette During the Window
If you own a brand, relying on luck to spot a conflicting application is a recipe for missing the deadline. The USPTO offers a free search tool at tmog.uspto.gov that lets you search published marks by word elements, owner name, goods and services description, international class, and other filters, and to filter specifically for marks published for opposition.5United States Patent and Trademark Office. Trademarks Official Gazette Search Many brand owners also pay commercial watch services that scan new publications automatically and flag potential conflicts.
Options Before the Deadline Runs
Two paths can be taken during the opposition window, and they serve different purposes.
Letter of Protest
A letter of protest is an informal submission of evidence, not argument, asking the USPTO to take another look at the application. It is filed through the Trademark Electronic Application System, and the Deputy Commissioner for Trademark Examination Policy decides whether to route the evidence back to the examining attorney. The best time to file is before publication, while examination is still open. Letters filed more than 30 days after publication are generally denied as untimely. Even an accepted letter does not guarantee refusal, so continued monitoring is still needed.
Notice of Opposition
A Notice of Opposition is the formal filing that opens a TTAB proceeding, and it must be filed electronically through the TTAB’s system before the deadline expires.6United States Patent and Trademark Office. Filing with TTAB7United States Patent and Trademark Office. USPTO Fee Schedule8United States Patent and Trademark Office. Likelihood of Confusion9United States Patent and Trademark Office. Possible Grounds for Refusal of a Mark A federal registration is not required to oppose; prior common-law rights from actual use in commerce are enough, as long as damage from the registration can be shown.
What Happens When the Window Closes
If the opposition period and any granted extensions expire without a Notice of Opposition, the application moves forward. Where it goes depends on the filing basis. A use-based application proceeds to registration, and the USPTO issues a registration certificate.3Office of the Law Revision Counsel. 15 USC 1063 – Opposition to Registration An intent-to-use application receives a Notice of Allowance instead, and the applicant then has to file a Statement of Use showing actual use in commerce before the mark can register.10United States Patent and Trademark Office. Section 1(b) Timeline – Application Based on Intent to Use
If You Miss the Window
Missing the 180-day ceiling does not permanently close the door. After a mark registers, anyone damaged by the registration can file a petition to cancel with the TTAB, but the grounds available depend on how long the mark has been registered.11Office of the Law Revision Counsel. 15 USC 1064 – Cancellation of Registration
Within the first five years, a cancellation petition can raise any ground that would have blocked registration originally, including likelihood of confusion and descriptiveness. After five years, the available grounds narrow. At that point, TTAB cancellation is limited to claims that the mark has become generic, is functional, has been abandoned, was registered through fraud, is being used to misrepresent the source of goods, or violates certain other specific provisions of the Lanham Act.11Office of the Law Revision Counsel. 15 USC 1064 – Cancellation of Registration Likelihood of confusion, the basis for most trademark disputes, drops off the table at the TTAB once a registration passes the five-year mark. That is why acting during the 30-day publication window, or securing extensions before it runs, is worth the effort.