Registered trademark symbol

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®
Registered trademark symbol

The registered trademark symbol (®) is a symbol that provides notice that the preceding word or symbol is a trademark or service mark that has been registered with a national trademark office. A trademark is a symbol, word, or words legally registered or established by use as representing a company or product.[1][2] In some countries it is against the law to use the registered trademark symbol for a mark that is not officially registered in any country.[1]

Trademarks not officially registered can instead be marked with the trademark symbol ™, while unregistered service marks are marked with the service mark symbol ℠. The proper manner to display these symbols is immediately following the mark; the symbol is commonly in superscript style, but that is not legally required.

In the US, the registered trademark symbol was originally introduced in the Trademark Act of 1946.[3]

Because the ® symbol is not commonly available on typewriters (or ASCII), it is common to approximate it with the characters (R) (or (r)); for example the Python programming language Trademark Usage Policy advocates this usage.[4] Example of legal equivalents are the phrase Registered, U.S. Patent and Trademark Office, which may be abbreviated to Reg U.S. Pat & TM Off.,[5] in the U.S.,[2] and the letters RTM in the UK.[1]

Computer usage[edit]

The registered trademark symbol.

The registered trademark character was added to several extended ASCII character sets, including ISO-8859-1 from which it was inherited by Unicode as U+00AE ® REGISTERED SIGN (HTML ® · ®).[6][7] This is a different character from U+24C7 CIRCLED LATIN CAPITAL LETTER R as many fonts draw the registered trademark symbol smaller and possibly superscripted.

Typing the character[edit]

Related and similar symbols[edit]

See also[edit]

References[edit]

  1. ^ a b c UK IPO, one example of a national trademark office
  2. ^ a b "15 U.S.C. 1111". Retrieved December 15, 2005.
  3. ^ The Online Etymology Dictionary
  4. ^ PSF Trademark Usage Policy. https://www.python.org/psf/trademarks/ "The first or most prominent mention of a Python trademark should be immediately followed by a symbol for registered trademark: "®" or "(r)"."
  5. ^ Gregory H. Guillot. A Guide to Proper Trademark Use. 1995–2007. http://www.ggmark.com/guide.html
  6. ^ https://www.unicode.org/charts/PDF/U0080.pdf
  7. ^ The Unicode Standard, Version 9.0, C1 Controls and Latin-1 Supplement (PDF). Mountain View, CA: Unicode Consortium. 2016. pp. 0080–00FF. ISBN 978-1-936213-13-9.

External links[edit]