How do i register-copyright my own quotation?

JP is right, except that you have to register with the COPYRIGHT office; not the CBP.

Note, however, that you can't copyright just a few words, nor can you copyright a 'slogan,' that isn't sufficiently 'creative.'

You may have a 'trademark' in a slogan, if it is used in connection with a good or service and is inherently distinctive.
The Copyright Office (in the US) has a great FAQ on its website that answers all of your questions:
http://www.copyright.gov/help/faq/faq-ge...

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That's retarded.

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Answers:
you have to have sum sort of fame or works (such as a novel/book etc) to file copyright on a quotation. just randomly copyrighting a quotation is pointless, no court will allow this.

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By writing it you have copyright on it. In order to register (to actually protect your rights in court) you have to file a form with the US Customs and Border Protection office.

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You can't..I have the same quotation as you

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Any original writing of yours -any of it and all of it- is automatically protected by copyright.You don't have to do anything.

HOWEVER, if someone uses your stuff -and you want to say that your wrote it (or said it) FIRST, THEN it's a good idea to have it registered in the copyright office (or as a trade mark). Now, an official government body has a record of when you wrote it.

That the long and short of it, anway. Here's a Q&A the explains more:

http://www.copyright.gov/help/faq/faq-ge...

(you can navigate to other parts of the site from there)

Make it good - its gonna cost you $45 PER ITEM.

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