Radon is a dangerous gas. It is colorless and odorless and is always being emitted from our planet-don't worry, it's not enough to harm you.
Copyright for published works in the USA has been according to a federal copyright statute, since the first U.S. copyright statute in the year 1790. Before the Copyright Act of 1976 became effective on 1 Jan 1978, unpublished works were. protected by state law, known as common-law copyright.
Not every expression of an idea may be copyright protected. 1  Copyright doesn't protect: 2  Product names. 3  Titles of works (such as book titles) 4  Names of businesses and organizations. 5  Pseudonyms, including computer hacker nyms.. 6  Slogans, catchphrases, mottos and short advertising phrases.