Stealing is bad" commercials...

Public domain - copyright and expired or never requested a copyright. How can you protect something by copyright. Working on something and you can technically put the s and your name and ate by it.

You can also file with the library of congress. If you work somewhere and develop something for them, they usually own the copyright.

Infringement - you reproduce something without permission. The exemption 18 USC exception for "fair use."

Cover band cannot play music. Does the writer or

Post grant review process.

Trademarks.