It helps to identify the rightsholder and copyright date.
A copyright sign tells you that that specific content is protected under United States copyright law. It acts as a warning and reminder that any unauthorized use of said content may result in penalties.
you don't ahahah
It was discussed in 1906 and codified in US copyright law in 1909.
In the United States it's the United States Copyright Office: http://www.copyright.gov/
License art? If you mean a copyright, you have that for anything you make. If you mean to sign a contract and sell copyright licenses, you have to be 18, or your parents have to sign the agreement.
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.
It would be illegal to do so.
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It's the marker's mark and a reminder that they control the copyright of the design.
Not at the moment, but it is frequently discussed. You can sign up for email updates from the Copyright Office in order to stay abreast of the issue.
as long as said company has permission or owns copyright then it is legal otherwise it is infringing on copyright
1 hv no idea