The service mark symbol (the letters ⟨SM⟩ in small capitals and superscript style), is a symbol used in the United States and some other jurisdictions to provide notice that the preceding mark is a service mark. This symbol may be used for service marks not yet registered with the relevant national authority. Upon successful registration, registered services are marked with the same symbol as is used for registered trademarks, the registered trademark symbol . The proper manner to display the symbol is immediately following the service name, in superscript style.
|Service mark symbol|
|In Unicode||U+2120 ℠ SERVICE MARK (HTML |
|Different from||U+2122 ™ TRADE MARK SIGN|
U+00AE ® REGISTERED SIGN
Unlike the similar trademark symbol, there is no simple way to type the service mark symbol on Microsoft Windows or Apple MacOS systems. However the symbol may be selected from the Character Map or the Character Palette, respectively. On Linux and similar systems with a Compose key, it can be inserted using Compose s m.