This symbol, when used with a registered trademark or service mark, puts others on notice that the mark is registered and that federal lawsuits may be brought to protect the mark.

Question

Quizplus · Accepted Answer

The symbol ® is used to indicate that a trademark or service mark is registered with a national trademark office, signifying legal protection and the ability to use federal courts for infringement cases.

This Symbol, When Used with a Registered Trademark or Service