Trademark Search & Clearance Guide: Knock-out vs Full Search

The "Knock-Out" Search

A "knock-out" or preliminary search is a quick check of the federal register. It is designed to eliminate obvious conflicts—exact matches or near-identical marks for the same goods.

  • Scope: Usually limited to the USPTO database (TESS) or equivalent federal registers.
  • Cost: Low cost, often done by the attorney or paralegal in-house.
  • Goal: To spot "red lights" immediately. If you find an exact match, you stop and save the client money on a full search.

The Comprehensive Search

If a mark survives the knock-out round, a comprehensive search is recommended. This digs much deeper.

It typically includes:

  • State Registrations: Trademarks registered at the state level.
  • Common Law Sources: Business names, domain names, app store listings, and social media handles.
  • Industry Publications: Trade journals and web searches to find unregistered (common law) users.

This search is crucial because in many jurisdictions (like the US), common law rights can pre-date and block a federal registration.

Analyzing Risk & Opinion Letters

Data without analysis is useless. The attorney's role is to interpret the search results. Is a similar mark in a related class a threat? Is the term descriptive?

Providing a clear Opinion Letter helps clients make business decisions. Risk is rarely black and white; it's a spectrum from "Very Low Risk" to "High Risk".

From Search to Docketing

Once a mark is cleared and filed, the journey is just beginning. The application must be tracked rigorously.

Tools like LexiDots seamlessly transition your cleared assets into a docketing workflow. By entering the filing date immediately, you ensure that the first round of examination deadlines—usually 3 to 6 months out—are already on your radar.

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