It depends on when the work was created. For works created before 1989, it may be required; the courts have not ruled as to whether a copyright notice is required on works first created before the U.S. became part of the Berne Union.
For works created after 1988 the answer is simple. No. A copyright symbol has not been necessary in the US since 1989.
There are advantages to putting the copyright symbol or copyright notice on a work even if not required, including eliminating the "innocent infringer" defense.
Such symbols are called entities. For the copyright symbol, use "©" (including the ampersand and the semicolon!)
The copyright symbol © is used to demonstrate that a work is protected and permission must be sought before use by a third party.
Similar to the (R) symbol, the (C) is a handy indicator that what follows is a copyright notification.
None. you wouldn't copyright the copyright symbol, you would trademark it.
© is a symbol indicating copyright; it has been in use for a little more than 100 years.
The copyright logo, ©, was created by Henry Wheaton, a U.S. reporter of decisions for the U.S. Supreme Court, in 1831. It became widely accepted as the universal symbol for copyright.
The copyright symbol © is used to demonstrate that an original work is protected and permission must be sought before use by a third party.
In Word 2000-2003, use the Insert>Symbol command. The copyright symbol is below the number 4, fourth row down. In Word 2007-2013, click on the Insert tab of the Ribbon, find the Symbols group at the right end and click on Symbol. The copyright symbol is usually in the top row. You can also type (c) and Autotext will change it into the copyright symbol automtically.
You would not be able to copyright your surname; if you are using it in commerce, you may be able to register it as a trademark.
Materials are not required to have a notification on them in order to be protected.
The copyright symbol consists of a C in a circle has become a widely recognised symbol. The copyright symbol was first used in section 18 of the 1909 American Copyright Act.
We use symbols in excel when we need to add a symbol of copyright, trademark symbols, and Unicode symbols etc.