The registered trademark symbol should be used when a brand name or logo has been officially registered with the government to protect its ownership and rights.
The trademark symbol should be used when a brand name, logo, or slogan is registered as a trademark to indicate ownership and protection of the intellectual property.
Facebook is a registered trademark, which earns it the right to use the ® symbol.
Typing (r) should autocorrect to the registered trademark symbol.
Assuming you are referring to the social networking website, the name "twitter" is a legally registered trademark so it should be used with the ® symbol.
In order to use the trademark symbol, you need to have registered the design with the trademark office. When you license your image for use by the band, you can specify, for example, how large the trademark symbol must appear, etc.
No, you do not have to use the registered trademark symbol every time you mention a trademarked term.
The symbol capital R within a circle [®], or circled capital letter R, is the registered trademark symbol. This indicates that the product is registered with a national trademark office (ex: Registered, U.S. Patent and Trademark Office). If a trademark is not officially registered, then it will be marked with a superscript TM (in capitals).
Symbol for "registered trademark"
The registered trademark symbol, an R in a circle, indicates the preceding logo, slogan, etc. has been formally registered; the trademark symbol, a superscript TM, indicates the mark has not been formally registered.
It's not required to use the trademark or registered trademark symbols, and some designers feel it clutters the look of the packaging.
The "TM" symbol, often printed small next to a picture or piece of writing that a company owns, stands for trademark. The trademark symbol can be used for any piece of property that one feels they have ownership of, even if it has not been filed with a patent office.
Trademark symbols include the registered trademark symbol (®), which is a capital "R" enclosed in a circle, indicating a registered trademark. The trademark symbol (™) is represented by a capital "T" and "M" in superscript, denoting an unregistered trademark. Additionally, the service mark symbol (℠) indicates a service mark, which is used similarly to trademarks but for services rather than goods.