A USPTO trademark registration number is the permanent identifier the U.S. Patent and Trademark Office assigns to a mark once it completes federal examination and any opposition period. It appears on the certificate of registration and, for marks on the Principal Register, serves as prima facie evidence of the mark’s validity, the owner’s ownership, and the owner’s exclusive right to use the mark in commerce on the listed goods or services.1Office of the Law Revision Counsel. 15 USC 1057 – Certificates of Registration Marks that don’t yet qualify for the Principal Register because they’re merely descriptive can still land on the Supplemental Register, which provides a federal filing date and access to federal courts but not the same legal presumptions.2Office of the Law Revision Counsel. 15 USC 1091 – Supplemental Register
Registration Number Is Not the Same as a Serial Number
Every application picks up a serial number the moment it’s filed. That’s a tracking code for the file as it moves through examination. It confers no protection and signals nothing about whether the government will ever recognize the mark. Plenty of applications receive a serial number and then die: refused by the examining attorney, abandoned by the applicant, or defeated in opposition.
A registration number is different. It only exists after the USPTO issues an actual certificate, and it then becomes the primary identifier for the protected mark. Quoting a serial number to a business partner, licensee, or customs officer accomplishes nothing legally. A registration number does.
How to Get a Registration Number
Getting to a registration number is a sequence: file a complete application, survive examination, survive the publication window, and then either receive the certificate directly or first prove use of the mark.
Filing the Application
Applications are filed electronically through the Trademark Electronic Application System (TEAS). To receive a filing date, the application must include the applicant’s name, address, and email; a clear drawing of the mark; a list of the goods or services; and the fee for at least one class.3eCFR. 37 CFR 2.21 – Requirements for Receiving a Filing Date The statute also requires a statement of the applicant’s domicile and citizenship.4Office of the Law Revision Counsel. 15 USC 1051 – Application for Registration; Verification Goods and services are categorized using the Nice Classification system. The base electronic filing fee is $350 per class.5United States Patent and Trademark Office. USPTO Fee Schedule
The applicant selects a filing basis: use in commerce (already using the mark) or intent to use (planning to). Use-in-commerce applicants submit one specimen per class showing the mark as it actually appears in the marketplace — on the product, its labels, tags, or packaging for goods, and in advertising or marketing materials for services. Intent-to-use applicants submit their specimen later. Applicants domiciled outside the United States must be represented by a U.S.-licensed attorney; domestic applicants may file on their own.6United States Patent and Trademark Office. Do I Need an Attorney?
Examination and Publication
Once filed, the application is assigned a serial number and routed to an examining attorney, who checks it against existing marks and federal law. If problems come up — likelihood of confusion, mere descriptiveness, a bad specimen — the applicant gets an office action and typically has three months to respond. If the attorney approves the mark, it publishes in the Trademark Official Gazette, issued every Tuesday.7United States Patent and Trademark Office. Trademark Official Gazette
Publication opens a 30-day window for anyone who believes the mark would harm them to file an opposition, and that window can be extended by request.8Office of the Law Revision Counsel. 15 USC 1063 – Opposition to Registration As of early 2026, total processing from filing to registration, allowance, or abandonment averages about 10.3 months for straightforward applications and roughly 12 months when suspended or contested cases are included.9United States Patent and Trademark Office. Trademarks Dashboard
The Final Step Depends on Your Filing Basis
For use-in-commerce applications, the USPTO issues the certificate and the permanent registration number shortly after the opposition period closes.
Intent-to-use applicants get an extra step. Instead of a certificate, they receive a Notice of Allowance. The mark is approved, but the applicant must still show it’s in use before the USPTO issues a registration number. The applicant has six months from the Notice of Allowance to file a Statement of Use with a specimen. Six-month extensions are available — up to five, for a maximum of three years from allowance — at $125 per class each.10United States Patent and Trademark Office. Intent to Use (ITU) Forms Missing the deadline without filing an extension abandons the application.4Office of the Law Revision Counsel. 15 USC 1051 – Application for Registration; Verification This is where many intent-to-use applications quietly die: the applicant treats the Notice of Allowance as the finish line and forgets the Statement of Use.
Looking Up a Registration Number
The USPTO’s Trademark Search system at tmsearch.uspto.gov lets you search by brand name, owner, or other criteria. The Trademark Status and Document Retrieval (TSDR) system then pulls detailed records for any application or registration by serial or registration number.11United States Patent and Trademark Office. Checking the Status of a Trademark Application or Registration TSDR shows current status, the full prosecution history, downloadable copies of filings including the original certificate, and upcoming maintenance deadlines. It’s the standard tool for due diligence before an acquisition, a licensing deal, or an enforcement action.
Using the ® Symbol
Once you hold a registration number, you can use the ® symbol next to your mark. Before that, only ™ (goods) or ℠ (services) are appropriate. A filing receipt, a serial number, or the examining attorney’s approval doesn’t authorize the ®. Only the issued certificate does.
This carries a real legal consequence. If a trademark owner doesn’t give notice of registration through the ® symbol or equivalent language, the owner cannot recover profits or damages in an infringement suit unless the infringer had actual knowledge of the registration.12Office of the Law Revision Counsel. 15 USC 1111 – Notice of Registration; Display With Mark; Recovery of Profits and Damages Going the other way is also risky: using ® on an unregistered mark can be treated as a false claim of federal registration and may jeopardize the owner’s ability to register or enforce the mark later.
Keeping the Registration Alive
The registration number lapses if you don’t maintain it. The USPTO expects periodic filings to prove continued use, and missed deadlines cancel the registration. No reminders bail you out.
Section 8 Declaration of Continued Use
Between the fifth and sixth year after registration, the owner files a declaration that the mark is still in use, with a current specimen. After that, Section 8 declarations come due every ten years as part of renewal. A six-month grace period is available with a $100 per class surcharge.13United States Patent and Trademark Office. Registration Maintenance/Renewal/Correction Forms
Section 9 Renewal
Between the ninth and tenth year, and every ten years after that, the owner files a renewal application. Most owners submit a combined Section 8 and Section 9. The electronic fee for the combined filing is $650 per class.5United States Patent and Trademark Office. USPTO Fee Schedule
Section 15 Incontestability
After five consecutive years of continuous use following registration, an owner can file a Section 15 declaration to make the mark incontestable. This is optional but eliminates most legal grounds a competitor could use to challenge the registration’s validity.14United States Patent and Trademark Office. Declaration of Incontestability of a Mark Under Section 15 Marks on the Supplemental Register are not eligible.
Recording the Mark With Customs
Owners of Principal Register marks can record their registration with U.S. Customs and Border Protection. Once recorded, CBP can detain, seize, and destroy imported goods bearing an infringing version of the mark.15U.S. Customs and Border Protection. U.S. Customs and Border Protection e-Recordation Program The fee is $190 per international class per registration, and the recordation lasts as long as the USPTO registration stays active.16United States Patent and Trademark Office. U.S. Customs and Border Protection Services for Trademark Owners For products that are frequent counterfeiting targets, this is one of the more practical enforcement tools available.
Transferring a Registration
A registration can be sold, assigned, or otherwise transferred. Record the transfer through the USPTO’s online Assignment Center, which requires a USPTO.gov account.17Assignment Center. Assignment Center The recording fee is $40 for the first mark in a document and $25 for each additional mark in the same document.5United States Patent and Trademark Office. USPTO Fee Schedule
Recording isn’t technically mandatory, but skipping it creates real problems. An unrecorded assignment leaves the old owner listed in USPTO records, which complicates maintenance filings, enforcement, and future transfers. The new owner also needs the mark’s goodwill to travel with the registration; assigning a trademark without the associated business goodwill can render the assignment invalid.