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How long is a trademark of a corporation valid under the law of the United States?
A. For 20 years if not registered and for 50 years if registered.
B. For 100 years if registered.
C. Indefinitely if not registered, until the corporation abandons it.
D. Indefinitely, but only if registered.
Answer:C
C is corrent. Trademarks last as long as they retain their distinctiveness. Therefore, they can last indefinitely. Trademarks are terminated by their actual abandonment or their constructive abandonment if the owner allows the trademark to lose its distinctiveness.
A is incorrect because there are no such rules involving number of years.
A is incorrect because there are no such rules involving number of years.
D is incorrect because trademarks can receive protection even if not registered.