Glossary

Trademark and copyright terms, in plain English.

USPTO writing assumes you already know the jargon. Here are the terms you see most often when registering, enforcing, or defending a brand.

A–C

Abandonment: Loss of trademark rights when a registered owner stops using a mark in commerce without intent to resume, or misses a USPTO deadline.
Application (use vs. intent-to-use): A use-based application says you're already selling under the mark; an intent-to-use (ITU) application reserves the mark for future use and converts once you start selling.
Cease-and-desist letter: A formal letter demanding that someone stop using a confusingly similar mark. Usually the first — and often the last — step in enforcement.
Commercial impression: The overall impression a mark leaves on an ordinary consumer — look, sound, meaning, and connotation taken together — rather than a side-by-side letter-by-letter comparison. Two marks with the same commercial impression can be confusingly similar even if they're spelled differently.
Common-law trademark (™): Rights you earn automatically by using a mark in commerce, even without registration. Limited to the geographic area where you actually do business.
Copyright: An automatic federal right in original works of authorship fixed in a tangible medium — writing, photos, music, software, video. Protects expression, not ideas or names. Registration with the U.S. Copyright Office isn't required to own a copyright, but it's required to sue for infringement and unlocks statutory damages and attorneys' fees.

D–L

Declaration of continued use (§8/§9): Required USPTO filings between the 5th and 6th year, and again every 10 years, proving you're still using the mark. Miss them and the registration dies.
Descriptive mark: A mark that merely describes the goods (e.g., 'Cold Beer' for beer). Hard to register without proof of acquired distinctiveness.
Federal registration (®): USPTO-issued registration giving nationwide rights, federal-court jurisdiction, statutory damages, and the right to use the ® symbol.
Intellectual property (IP): The umbrella category for legally protectable creations of the mind — trademarks (brand names and logos), copyrights (creative works), patents (inventions), and trade secrets (confidential business information). Each has its own rules, registration system, and remedies.
International class: One of 45 categories the USPTO uses to group goods and services. You pay per class. See the USPTO list of all 45 classes →
Laches: An equitable defense: if a trademark owner waits too long to sue and the delay prejudices the alleged infringer, a court can bar or limit the claim — even before the statute of limitations would run out.
Lanham Act: The federal trademark statute (15 U.S.C. §1051 et seq.), enacted in 1946. It governs federal registration, infringement, false advertising, and dilution — the backbone of U.S. trademark law.
Likelihood of confusion: The central question in most trademark disputes: would an ordinary consumer be confused about who made the product?

M–R

Office action: A letter from the USPTO examining attorney raising legal or procedural issues with your application. You have a deadline to respond — usually 3 months.
Opposition / Cancellation: Proceedings at the Trademark Trial and Appeal Board (TTAB) to block (opposition) or undo (cancellation) someone else's mark.
Principal Register: The main USPTO register — full federal-registration benefits. The Supplemental Register is a lesser fallback for descriptive marks.
Registration certificate: The document the USPTO issues when your mark is registered. Frame it. It's the basis for most enforcement leverage.

S–Z

Secondary meaning: When a descriptive or otherwise weak mark becomes associated in consumers' minds with a single source through long use, advertising, and sales. Required to register a descriptive mark on the Principal Register.
Specimen: Evidence showing how the mark is actually used in commerce — a label, a packaging photo, a website screenshot of an active sales page.
Supplemental Register: A secondary USPTO register for marks not yet distinctive enough for the Principal Register. You get the ® symbol and federal-court access, but no presumption of validity or incontestability — often a stepping stone while secondary meaning builds.
Trade dress: Distinctive look and feel of a product or packaging (the Coca-Cola bottle shape, Tiffany blue) that functions like a trademark.
Trade secret (via NDA/confidentiality agreement): Commercially valuable information that derives value from being kept secret — formulas, customer lists, processes. Protection depends on reasonable secrecy measures, which in practice means written confidentiality and non-disclosure agreements with anyone who sees it. Lose the secrecy, lose the right.
TTAB (Trademark Trial and Appeal Board): The USPTO's administrative tribunal that decides oppositions (challenges to pending applications), cancellations (challenges to existing registrations), and appeals from examining-attorney refusals. The TTAB rules on the right to register — not on infringement or damages — and its proceedings look like streamlined federal litigation: pleadings, discovery, briefing, and a written decision.
UDRP: Uniform Domain-Name Dispute-Resolution Policy — the fast, arbitration-style process to recover an infringing domain without a federal lawsuit.
USPTO: United States Patent and Trademark Office — the federal agency that examines and registers trademarks (and patents).

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