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What is the difference between the symbols: TM, SM, and ®?

April 26, 2017difference SM Symbols TM

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What is the difference between the symbols: TM, SM, and ®?

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The “TM” stands for trademark and the “SM” stands for service mark. They indicate that the person is claiming a common law form of trademark protection. Only those who have obtained a registered trademark or service mark with the U.S. Patent and Trademark Office are allowed to use the “R” in a circle, which indicates that theirs is a registered trademark.