Ideas cannot be protected.
No; copyright would protect an author, and patent would protect an inventor.
Getting a patent is a great idea to protect your idea. You can apply for a patent online www.InventionHome.com.
Patent laws protect inventors from having their ideas or products stolen. To get an idea patent, you can contact a patent attorney in your area.
One can protect a patent idea in the European Union via application submitted to The European Union patent, formally know as European patent. Find as many details as required by searching "European Union patent" on the Wikipedia web page on the internet world wide web.
That would be the Patent and Trademark Office. You can find most of the necessary forms and information on their website.
The US Patent and Trademark Office.
It would be smart to get a provisional patent first. They are inexpensive and can be useful for two reasons. Reason number one, they are a patent an will protect your idea. Reason number two, it is much faster to acquire a provisional patent than it is to apply for a registered patent.
In the United States ~ US Patent Office
You could apply for a patent. Contact the US Patent Ofiice for information on how.
Yes you need to be very careful and use a provisional patent to protect your idea.
Yes, you can sell your idea without a patent. A patent is a right granted by the government to exclude others from making, using, selling, offering for sale or importing your invention. You do not need to have a patent in order to sell your idea. The purchaser may desire to file a patent. You may also decide to protect your idea using trade secret laws (like the recipe for Coca Cola). Please be sure to use a non-disclosure agreement when discussing your idea with a potential purchaser. You do not want them hearing your idea and then exploiting it on their own.
Sure, why not? I would think it just has to be a decent idea, with a Prototype to prove it.