Copyright symbol

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©
Copyright symbol
Punctuation
apostrophe( ’ ' )
brackets( [ ], ( ), { }, ⟨ ⟩ )
colon( : )
comma( , ، 、 )
dash( , –, —, ― )
ellipsis( …, ..., . . . )
exclamation mark( ! )
full stop / period( . )
hyphen( )
hyphen-minus( - )
question mark( ? )
quotation marks( ‘ ’, “ ”, ' ', " " )
semicolon( ; )
slash / stroke / solidus( /,  ⁄  )
Word dividers
interpunct( · )
space( ) ( ) ( )
General typography
ampersand( & )
asterisk( * )
at sign( @ )
backslash( \ )
bullet( )
caret( ^ )
dagger( †, ‡ )
degree( ° )
ditto mark( )
inverted exclamation mark( ¡ )
inverted question mark( ¿ )
number sign / pound / hash / octothorpe( # )
numero sign( )
obelus( ÷ )
ordinal indicator( º, ª )
percent, per mil( %, ‰ )
plus and minus( + − )
basis point( )
pilcrow( )
prime( ′, ″, ‴ )
section sign( § )
tilde( ~ )
underscore / understrike( _ )
vertical bar / broken bar / pipe( ¦, ‖, | )
Intellectual property
copyright symbol( © )
registered trademark( ® )
service mark( )
sound recording copyright( )
trademark( )
Currency
currency (generic)( ¤ )
currency (specific)
( ฿ ¢ $ ƒ £ ¥ )
Uncommon typography
asterism( )
hedera( )
index / fist( )
interrobang( )
irony punctuation( )
lozenge( )
reference mark( )
tie( )
Related
diacritical marks
logic symbols
whitespace characters
non-English quotation style( « », „ ” )
In other scripts
Chinese punctuation
Hebrew punctuation
Japanese punctuation
Korean punctuation
 
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©
Copyright symbol
Punctuation
apostrophe( ’ ' )
brackets( [ ], ( ), { }, ⟨ ⟩ )
colon( : )
comma( , ، 、 )
dash( , –, —, ― )
ellipsis( …, ..., . . . )
exclamation mark( ! )
full stop / period( . )
hyphen( )
hyphen-minus( - )
question mark( ? )
quotation marks( ‘ ’, “ ”, ' ', " " )
semicolon( ; )
slash / stroke / solidus( /,  ⁄  )
Word dividers
interpunct( · )
space( ) ( ) ( )
General typography
ampersand( & )
asterisk( * )
at sign( @ )
backslash( \ )
bullet( )
caret( ^ )
dagger( †, ‡ )
degree( ° )
ditto mark( )
inverted exclamation mark( ¡ )
inverted question mark( ¿ )
number sign / pound / hash / octothorpe( # )
numero sign( )
obelus( ÷ )
ordinal indicator( º, ª )
percent, per mil( %, ‰ )
plus and minus( + − )
basis point( )
pilcrow( )
prime( ′, ″, ‴ )
section sign( § )
tilde( ~ )
underscore / understrike( _ )
vertical bar / broken bar / pipe( ¦, ‖, | )
Intellectual property
copyright symbol( © )
registered trademark( ® )
service mark( )
sound recording copyright( )
trademark( )
Currency
currency (generic)( ¤ )
currency (specific)
( ฿ ¢ $ ƒ £ ¥ )
Uncommon typography
asterism( )
hedera( )
index / fist( )
interrobang( )
irony punctuation( )
lozenge( )
reference mark( )
tie( )
Related
diacritical marks
logic symbols
whitespace characters
non-English quotation style( « », „ ” )
In other scripts
Chinese punctuation
Hebrew punctuation
Japanese punctuation
Korean punctuation

The copyright symbol, or copyright sign, designated by © (a circled capital letter "C"), is the symbol used in copyright notices for works other than sound recordings (which are indicated with the symbol). The use of the symbol is described in United States copyright law,[1] and, internationally, by the Universal Copyright Convention.[2] The C stands for copyright.

History[edit]

A copyright notice was first required in the U.S. by the Copyright Act of 1802.[3] It was lengthy: "Entered according to act of Congress, in the year         , by A. B., in the office of the Librarian of Congress, at Washington." In general, this notice had to appear on the copyrighted work itself, but in the case of a "work of the fine arts", such as a painting, it could instead be inscribed "on the face of the substance on which [the work of art] shall be mounted".[4] The Copyright Act was amended in 1874 to allow a much shortened notice: "Copyright, 18        , by A. B."[5]

The copyright symbol © was introduced in the United States Copyright Act of 1909, section 18.[6]

The Copyright Act of 1909 was meant to be a complete rewrite and overhaul of existing copyright law. As originally proposed in the draft of the bill, copyright protection required putting the word "copyright" or a sanctioned abbreviation on the work of art itself, also for paintings, the argument being that the frame was detachable. In conference sessions among copyright stakeholders on the proposed bill, conducted in 1905 and 1906, representatives of artist organizations objected to this requirement, wishing to put no more on the work itself than the artist's name. As a compromise, the possibility was created to add a relatively unintrusive mark, the capital letter C within a circle, to appear on the work itself next to the artist's name, indicating the existence of a more elaborate copyright notice elsewhere that was still to be allowed to be placed on the mounting.[7] Indeed, the version of the bill that was submitted to Congress in 1906, compiled by the Copyright Commission under the direction of the Librarian of Congress, Herbert Putnam, contained a provision that a special copyright symbol, the letter C inclosed within a circle, could be used instead of the word "copyright" or the abbreviation "copr.", but only for a limited category of copyrightable works, including works of art but not ordinary books or periodicals.[8] The formulation of the 1909 Act was left unchanged when it was incorporated in 1946 as title 17 of the United States Code; when that title was amended in 1954, the symbol © was allowed as an alternative to "Copyright" or "Copr." in all copyright notices.[9]

Prior symbols indicating a work's copyright status are seen in Scottish almanacs of the 1670s; books included a printed copy of the local coat-of-arms to indicate their authenticity.[10]

In countries party to the Berne Convention for the Protection of Literary and Artistic Works, including the modern-day U.S., a copyright notice is not required to be displayed in order for copyright to be established; rather, the creation of the work automatically establishes copyright.[11]

US copyright notice[edit]

In the United States, the copyright notice consists of:[12]

e.g.

© 2011 John Smith

The notice was once required in order to receive copyright protection in the United States, but in countries respecting the Berne convention this is no longer the case. The United States joined the Berne Convention in 1989.[11]

Digital representation[edit]

Because the © symbol has long been unavailable on typewriters and ASCII-based computer systems, it has been common to approximate this symbol with the characters (C).

The character is mapped in Unicode as U+00A9 © copyright sign (HTML: © ©).[13] Unicode also has U+24B8 circled latin capital letter c (HTML: Ⓒ) and U+24D2 circled latin small letter c (HTML: ⓒ).[14] They are sometimes used as a substitute copyright symbol where the actual copyright symbol is not available in the font or in the character set, for example, in some Korean code pages.

On Windows it may be entered by holding the Alt while typing the numbers 0 1 6 9 on the numeric keypad. It can be entered on a Mac by holding the Option key and then pressing the "g" key. On Linux, it can be obtained with the <compose key> O C ComposeKey sequence.

Related symbols[edit]

See also[edit]

References[edit]

  1. ^ 17 U.S.C. § 401
  2. ^ Universal Copyright Convention, Article III, §1. (Paris text, July 24, 1971.)
  3. ^ "Copyright Law Revision Study Number 7, page 6". United States Copyright Office. United States Government Printing Office. Retrieved 14 June 2013. 
  4. ^ Copyright Act of 1870, §97.
  5. ^ 1874 Amendment to the Copyright Act of 1870, §1.
  6. ^ Copyright Act of 1909, §18.
  7. ^ Arguments before the Committees on Patents of the Senate and House of Representatives, conjointly, on the bills S. 6330 and H.R. 19853, to amend and consolidate the acts respecting copyright. June 6–9, 1906. Government Printing Office. 1906. p. 68. 
  8. ^ "Proposed Copyright Legislation". The Writer. XVIII (6): 87. June 1906. 
  9. ^ Public Law 743—August 31, 1954. 68 Stat. 102.
  10. ^ Mann, Alastair J.; Kretschmer, Martin, Bently, Lionel (2010). "A Mongrel of Early Modern Copyright". In Deazley, Ronan. Privilege and property: essays on the history of copyright. Open Book Publishers. ISBN 978-1-906924-18-8. 
  11. ^ a b Molotsky, Irvin (October 21, 1988). "Senate Approves Joining Copyright Convention". The New York Times. Retrieved September 22, 2011. 
  12. ^ 17 U.S.C. § 401(b)
  13. ^ http://www.unicode.org/charts/PDF/U0080.pdf
  14. ^ http://www.unicode.org/charts/PDF/U2460.pdf
  15. ^ Stephen Fishman (2010), "The Copyright Symbol", The Public Domain, p. 356, ISBN 978-1-4133-1205-8 
  16. ^ "Unicode copyleft inquiry". 
  17. ^ Hall, G. Brent (2008). Open Source Approaches in Spatial Data Handling. Springer. p. 29. ISBN 3-540-74830-X.  Additional ISBN 978-3-540-74830-4. See Open Source Approaches in Spatial Data Handling at Google Books, page 29.

External links[edit]