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Service mark symbol
In UnicodeU+2120 SERVICE MARK
Different from
Different fromU+2122 TRADE MARK SIGN

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.

Computer systems

Main article: Unicode input

The service mark symbol is mapped in Unicode as U+2120 SERVICE MARK, in the Letterlike symbols block.[1] The HTML entity is ℠.

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 Windows Character Map or the MacOS Character Palette. On Linux and similar systems with a Compose key, it can be inserted using Compose s m.

Related symbols

See also


  1. ^ "The Unicode Standard 7.0, Letterlike Symbols" (PDF). Unicode, Inc.