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What is a "likelihood of confusion" refusal?

Senior Trademark Attorney

A likelihood of confusion refusal is an office action ground raised when the examiner determines that the applied-for mark is confusingly similar to an earlier registered or pending trademark and covers the same or related goods or services. The purpose of trademark law is to prevent consumer confusion about the source of goods or services; where two similar marks coexist in the same market, that confusion becomes likely.

The examiner assesses multiple factors: the visual, phonetic, and conceptual similarity of the marks; the similarity of the goods or services; the channels of trade; and the sophistication of consumers. No single factor is determinative; the assessment weighs all of them together.

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