Copyright Compendium

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2204.4 (A) Variants for the © Symbol

2204.4 (A) Variants for the © Symbol


A variant of the symbol © is acceptable only if it resembles the © closely enough to indicate clearly that the variant is intended to be the copyright symbol. Acceptable variants include:



• The letter c with a parenthesis over the top.

• The letter c with a parenthesis under the bottom.

• (c

• c)

• (C)

• The letter c with an unenclosed circle around it.


Examples of unacceptable variants on the © symbol include the following:


• CO

• C

• C/O

• @ (i.e., the letter a in a circle).

• The letter c with a circle attached to the bottom of the letter.

• The letter c in a square.

• [c]