Assuming the material was created and first published after 1977, it would be 70 years for works authored by a person, 95 years after publication for corporate works and 120 years from creation of a corporate work, if that would be earlier than 95 years after publication.
For works prior to that, there are numerous dependencies including when it was created, when it was published, the nationality of the author, whether it was published abroad, whether the publication included copyright notices, whether the copyright was registered in the USA, and whether it was renewed. Works published prior to 1923 are in the public domain, as are works published prior to 1977 without proper copyright notice.
It varies by country but generally it is in effect for the life of the author plus 70 years.
Any owner of a copyright can sue for infringement as long as the copyright is still valid (i.e., for 95 years from publication).
Copyright is a federal law which would be valid in California.
No; protection is automatic and registration is not required.
Orphan works are works in which there IS a valid copyright but they holder of the copyright has not come forward or is not know. They are NOT available for reproduction.
All members of the World Trade Organization recognize each other's copyrights.
For as long as the document is valid.
Yes, you can copyright a slogan as long as it meets the requirements for copyright protection, such as being original and creative.
It varies significantly from country to country; some treat sound recordings differently, and others don't. The shortest a sound recording copyright is valid is 50 years from creation (the minimum required by Berne); the longest is the life of the creator plus 100 years (Mexico).
there is no time frame or a bank draft, it is valid for as long as you have it.
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Technically, it does have copyright, but they have allowed you to use it as long as you give them credit.
Yes; it was fastidiously renewed and will be protected through 2056.