Trademark Glossary
Plain-English definitions of every trademark term you need to know — from filing to enforcement.
Abandonment
When a trademark application or registration is no longer pursued or maintained, typically due to failure to respond to an office action or file required maintenance documents within the deadline.
Trademark Maintenance →Acquired Distinctiveness
Also known as 'secondary meaning.' When a descriptive mark gains trademark protection because consumers have come to associate it exclusively with a particular source through extensive use and marketing.
Allegation of Use
A sworn statement filed with the USPTO declaring that a trademark is being used in commerce in connection with the goods or services listed in the application. This includes both Statements of Use and Amendments to Allege Use.
Statement of Use Filing →Amendment to Allege Use
A document filed before the trademark is approved for publication, declaring that the mark is now in use in commerce. It serves the same purpose as a Statement of Use but is filed at an earlier stage.
Arbitrary Mark
A common word used in a way that has no logical connection to the goods or services it represents (e.g., 'Apple' for computers). Arbitrary marks receive strong trademark protection.
Assignment
The transfer of ownership of a trademark from one party to another. Assignments must be recorded with the relevant trademark office to be effective against third parties.
Trademark Assignment →Blurring
A form of trademark dilution where a famous mark's distinctiveness is weakened by association with dissimilar goods or services, even without consumer confusion.
Cancellation Proceeding
A legal action filed with the Trademark Trial and Appeal Board (TTAB) to cancel an existing trademark registration, typically on grounds of likelihood of confusion, abandonment, or genericness.
Cease and Desist Letter
A formal letter sent to an alleged infringer demanding they stop using a trademark that conflicts with the sender's rights. Often the first step before litigation.
Cease & Desist Service →Class (Nice Classification)
The international system that categorizes goods and services into 45 classes (1–34 for goods, 35–45 for services). Each trademark application must specify the relevant class(es).
Class Assist Tool →Co-existence Agreement
A contract between two trademark owners allowing both marks to exist in the marketplace, usually with agreed-upon limitations on geography, channels, or goods/services.
Common Law Trademark
Trademark rights acquired through actual use of a mark in commerce, without formal registration. Common law rights are limited to the geographic area of use and are harder to enforce than registered marks.
Composite Mark
A trademark that combines both word and design elements into a single mark. The scope of protection may vary depending on how distinctive each element is.
Concurrent Use
When two or more parties are allowed to use similar marks for similar goods/services, typically restricted to different geographic areas, based on their respective prior use.
Consent Agreement
A written agreement between two trademark applicants or owners consenting to the registration and use of similar marks, often submitted to overcome a likelihood of confusion refusal.
Constructive Use
The legal concept that filing a trademark application establishes nationwide priority as of the filing date, even before the mark is actually used in commerce.
Continuation
A new application filed to continue prosecution of subject matter from a prior application, maintaining the original filing date.
Copyright
A form of intellectual property protection for original works of authorship, including literature, music, art, and software. Unlike trademarks, copyrights protect creative expression rather than brand identifiers.
Copyright Registration →Counterfeit Mark
A spurious mark that is identical or substantially indistinguishable from a registered trademark, used on goods or services without authorization. Counterfeiting carries severe civil and criminal penalties.
Declaration of Use (Section 8)
A sworn statement filed between the 5th and 6th year after registration (and at each renewal) confirming that the trademark is still in use in commerce. Failure to file results in cancellation.
Trademark Maintenance →Descriptive Mark
A mark that directly describes a quality, feature, function, or characteristic of the goods or services. Descriptive marks cannot be registered unless they have acquired distinctiveness (secondary meaning).
Design Mark
A trademark consisting of a logo, symbol, or stylized design element, either alone or combined with words. Design marks protect the specific visual appearance depicted in the registration.
Dilution
The weakening of a famous mark's distinctiveness or reputation through unauthorized use by others, even without consumer confusion. Dilution includes blurring and tarnishment.
Disclaimer
A statement in a trademark application or registration acknowledging that the applicant does not claim exclusive rights to a particular element of the mark (typically a descriptive or generic word).
Distinctiveness
The ability of a mark to identify and distinguish the source of goods or services. Marks range from generic (no protection) to fanciful (strongest protection) on the distinctiveness spectrum.
Dominant Element
The most prominent and distinctive part of a composite trademark. When assessing likelihood of confusion, examiners often focus on the dominant element rather than the mark as a whole.
Drawing
The visual representation of a trademark submitted with an application. It can be a 'standard character' drawing (text only, no specific font) or a 'special form' drawing (stylized text or design).
EU Trademark (EUTM)
A trademark registered through the European Union Intellectual Property Office (EUIPO) that provides protection across all EU member states with a single application.
EU Trademark Registration →Examination
The process by which a trademark office reviews an application for compliance with legal requirements, including searches for conflicting marks and assessment of registrability.
Extension of Time to Oppose
A request to extend the 30-day opposition period, giving a potential opposer additional time to decide whether to file a formal opposition against a published trademark application.
Fanciful Mark
An invented or coined word with no dictionary meaning, created solely to serve as a trademark (e.g., 'Xerox,' 'Kodak'). Fanciful marks receive the strongest level of trademark protection.
Filing Basis
The legal ground on which a trademark application is filed. In the US, the main bases are: use in commerce (Section 1(a)), intent to use (Section 1(b)), and foreign registration (Section 44(e)).
First Use Date
The date on which a trademark was first used anywhere in connection with the goods or services, regardless of whether it was in interstate or international commerce.
First Use in Commerce Date
The date on which a trademark was first used in a type of commerce regulable by the US Congress (interstate, international, or between a state and a territory).
Fraud on the Trademark Office
A serious allegation that an applicant or registrant knowingly made false material representations to the trademark office, which can result in cancellation of the registration.
Generic Term
A word that is the common name for a product or service (e.g., 'computer' for computers). Generic terms cannot function as trademarks and receive no protection.
Goods and Services Description
The specific identification of products or services associated with a trademark, drafted using acceptable terminology. The description defines the scope of trademark protection.
Grace Period
An additional time window after a deadline has passed during which a required filing can still be made, usually subject to payment of an additional fee.
Incontestable Status
Enhanced legal protection for a US trademark achieved by filing a Section 15 declaration after five consecutive years of use. Incontestable marks are immune to certain legal challenges.
Infringement
Unauthorized use of a trademark (or a confusingly similar mark) in commerce in connection with goods or services in a way that is likely to cause consumer confusion about the source.
Intent-to-Use (ITU) Application
A US trademark application filed based on a bona fide intention to use the mark in commerce in the future. The applicant must later file a Statement of Use before the registration will issue.
Statement of Use Filing →International Registration
A trademark filing made through the Madrid Protocol system, allowing applicants to seek protection in multiple countries through a single application filed with WIPO.
Lanham Act
The primary federal trademark statute in the United States (15 U.S.C. §§ 1051–1141), governing trademark registration, protection, and enforcement.
Letter of Protest
A submission by a third party to the USPTO providing evidence or arguments that a pending trademark application should not be registered, typically based on likelihood of confusion or descriptiveness.
Likelihood of Confusion
The legal standard used to determine whether two trademarks are similar enough that consumers might be confused about the source of goods or services. This is the most common basis for refusal.
Madrid Protocol
An international treaty that allows trademark owners to seek registration in multiple countries by filing a single international application through the World Intellectual Property Organization (WIPO).
Mark
Any word, name, symbol, design, or combination used to identify and distinguish goods or services from those of others. The term encompasses trademarks, service marks, and trade dress.
Nice Classification
The international system for classifying goods and services for trademark registration, maintained by WIPO. It consists of 45 classes: 34 for goods and 11 for services.
Class Assist Tool →Nominal Use
Minimal or token use of a trademark that may be insufficient to maintain trademark rights. Genuine commercial use in the ordinary course of trade is required to maintain a registration.
Notice of Allowance (NOA)
A document issued by the USPTO for intent-to-use applications after the mark has been published and no opposition was filed. The applicant then has six months to file a Statement of Use.
Office Action
An official letter from a trademark examiner identifying issues with an application that must be addressed before the mark can proceed to registration. Office actions may be substantive or procedural.
Office Action Response →Opposition
A legal proceeding filed before the TTAB by a party who believes they would be damaged by the registration of a published trademark. The opposition must be filed within 30 days of publication.
Trademark Opposition →Patent
A form of intellectual property protection that grants exclusive rights to an invention for a limited period. Patents protect functional innovations, while trademarks protect brand identifiers.
Principal Register
The primary register for trademarks at the USPTO, available for marks that are inherently distinctive or have acquired distinctiveness. Registration on the Principal Register provides the strongest legal benefits.
Priority Date
The date that establishes a trademark applicant's place in line relative to other applicants. In most jurisdictions, the filing date serves as the priority date.
Publication for Opposition
The stage in the trademark registration process where a mark is published in the Official Gazette, giving third parties 30 days to file an opposition or request an extension.
Registered Mark (®)
The symbol indicating that a trademark has been officially registered with a national trademark office. Using ® on an unregistered mark is illegal and may constitute fraud.
Renewal
The process of extending a trademark registration beyond its initial term. In the US, renewals are filed every 10 years along with a Section 8 declaration of continued use.
Trademark Renewal →Secondary Meaning
When consumers associate a descriptive or non-distinctive mark with a single source due to extensive use, advertising, and recognition. Establishing secondary meaning allows registration of otherwise unregistrable marks.
Section 2(d) Refusal
A refusal issued by the USPTO when an applied-for mark is likely to be confused with a previously registered mark or pending application. This is the most common substantive refusal.
Service Mark
A type of trademark used to identify and distinguish services rather than goods. Service marks function identically to trademarks and are subject to the same registration requirements.
Specimen
Evidence showing how a trademark is actually used in commerce in connection with the goods or services. Specimens must show the mark as consumers encounter it in the marketplace.
Standard Character Mark
A trademark consisting of words, letters, or numbers without any claim to a particular font, style, size, or color. Standard character marks protect the text regardless of how it is displayed.
Statement of Use (SOU)
A document filed with the USPTO declaring that an intent-to-use trademark is now being used in commerce, along with a specimen showing the mark in use.
SOU Filing Service →Suggestive Mark
A mark that suggests a quality or characteristic of the goods/services but requires consumer imagination to make the connection (e.g., 'Netflix' for streaming). Suggestive marks are inherently distinctive.
Supplemental Register
A secondary register at the USPTO for marks that are not yet distinctive enough for the Principal Register but may acquire distinctiveness over time. It provides limited legal benefits.
Surname Refusal
A refusal to register a trademark that is primarily merely a surname, unless the applicant can show the mark has acquired distinctiveness through extensive use.
Tarnishment
A form of trademark dilution where a famous mark's reputation is harmed by association with inferior, unwholesome, or unsavory goods or services.
Trade Dress
The overall commercial image or look and feel of a product or its packaging that indicates the source. Trade dress can include colors, shapes, textures, and design elements.
Trade Name
The name under which a business operates, which may differ from its trademark. Trade names identify the business entity itself, while trademarks identify the goods or services it offers.
Trademark
A word, phrase, symbol, design, or combination that identifies and distinguishes the source of goods from those of others. Trademarks help consumers identify brands and make purchasing decisions.
Register Your Trademark →Trademark Monitoring
The ongoing process of watching trademark databases and marketplaces for new filings or uses that may conflict with your existing mark. Early detection allows timely enforcement action.
Monitoring Service →Trademark Search
A comprehensive search of federal, state, and common law sources to identify existing marks that may conflict with a proposed trademark before filing an application.
Free Trademark Search →TSDR (Trademark Status & Document Retrieval)
The USPTO's online system for checking the status of trademark applications and registrations, and viewing associated documents.
TTAB (Trademark Trial and Appeal Board)
An administrative tribunal within the USPTO that handles opposition and cancellation proceedings, as well as appeals from trademark examining attorney refusals.
Use in Commerce
The bona fide use of a trademark in the ordinary course of trade, in a type of commerce regulable by the US Congress. A mark must be used in commerce to be registered on the Principal Register.
WIPO (World Intellectual Property Organization)
A United Nations agency that administers international IP treaties, including the Madrid Protocol for international trademark registration and the Nice Classification system.
Word Mark
A trademark consisting solely of words, letters, or numbers, without any design element. Word marks provide broader protection because they cover the text in any font, color, or style.