For USA, work produced by the government is in general not protected by copyright within USA. The US government may still hold copyright in other countries.
Work produced by contractors on behalf of the US government, on the other hand, is protected by copyright in the usual fashion.
There are some exceptions and special cases, see related link.
Absolutely.
Yes; patents and copyrights are temporary monopolies.
Copying films is illegal, unless you own the copyrights to the film.
No. That is infringing on the artist's copyrights.
No patents and copyrights were established by government to increase oligopoly and monopoly power.
A Trademark Registrar is a government official whose office handles registration of copyrights.
Copying, altering, distributing, or performing/displaying works that are not your own is copyright infringement.
The ICD-9 cm is a work of the federal government, and as such is not protected by copyright.
Yes, but certain expressions of the stories may have their own copyrights.
Until Further Advised Ungated Free Access (to copyrights and patents)
patents and copyrights
Copyright information on fabric usually appears in the selvage. You can only claim copyright on your own original work.