

Summary of the general rules: ® means "Registered Trademark" (as validated by the Patent & Trademark Office). If your mark covers both products and services, TM is recommended. Use TM for marks that represent goods and SM for marks that represent services.

This includes marks that are the subject of a still-pending application in the U.S. Kelley Keller: Use TM or SM for unregistered marks only. Improperly using the Circle R can result in serious legal problems.

Remember that you should never use the Circle R symbol before fully registering the trademark with the USPTO. Using the TM Symbol You should use the TM symbol after locally registering your trademark with your state government. Some businesses choose to continue using the TM symbol instead of a Circle-R even after they have registered their trademark in the US. The federal trademark registration gives you extra legal rights. You can use the Circle-R symbol only next to a trademark that has been registered with the federal government. Alternatively, you may also copy and paste the appropriate text from a third party or use the Mac keyboard application viewer to select the appropriate characters.
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How to Type Trademark, Copyright, Symbols on iPhone and iPad
