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United States Patent and Trademark Office (USPTO)
Guide · Trademarks · United States
Trademarks in the US are registered with the United States Patent and Trademark Office (USPTO). Opposition period for newly published applications: 30 days; up to 180 with extensions. Ulawk searches its trademarks and patents by owner, number or mark name and compares each new application with the marks you watch, showing the last day to oppose.
· Ulawk editorial team · Last reviewed 12.11.2026
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United States Patent and Trademark Office (USPTO): what Ulawk reads and how.
United States Patent and Trademark Office (USPTO)
Trademarks and patents.
Searched in Ulawk's own copy of the register: by owner name, by number, or by mark name. The index is refreshed daily.
Official Gazette: applications published for opposition.
30 days from publication in the Official Gazette (15 U.S.C. §1063(a)). It can be extended by 30 days on request or by 90 days for good cause, up to 180 days from publication in total (37 CFR §2.102).
How to
From the first search to an opposition filed in time.
30 days; up to 180 with extensions.
Opposition deadline in the US.
Check United States Patent and Trademark Office (USPTO) records for the same or a similar mark and for the marks of a counterparty.
Enter each word mark with its Nice classes; related classes are compared too.
New applications similar to your marks are listed with a risk level: high, medium, low.
Each finding shows the last day to oppose, counted from the publication date.
Export findings to Excel for your attorney or client.
Limits
Said plainly.
The last day shown is the base period; extensions you obtain are not added.
For US applications the comparison uses classes; the goods and services text is not read.
Findings support your attorney; whether to oppose is a legal decision.
30 days from publication in the Official Gazette (15 U.S.C. §1063(a)). It can be extended by 30 days on request or by 90 days for good cause, up to 180 days from publication in total (37 CFR §2.102).
Yes. United States Patent and Trademark Office (USPTO) records: trademarks and patents. Searched in Ulawk's own copy of the register: by owner name, by number, or by mark name. The index is refreshed daily.
Yes. Ulawk reads the Official Gazette: applications published for opposition and compares each new mark with the marks you watch, class by class. Each finding gets a risk level and the last day to oppose.
Bring your list of customers, suppliers and counterparties; in an intro meeting we show Ulawk with your own companies.
Trademark search and watch come with enterprise packages; ask for a quote.
Enterprise · 100+ companies
For more than 100 companies, team work, an API integration or the trademark and regulatory modules, we prepare a price for you.
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