If it is your own or you have a license, yes. For example, something originally conceived as a decorative element may become part of a logo.
The purpose of a person doing a registered trademark search is if the person wants to register a trademark of their own. If their action is already trademarked, it cannot be trademarked by another person.
If it is registered as a trademark or "logo," it will be protected. If you register it in a state, the protection will extend only to its use in that state. You have to register it with the federal patent and trademark office to protect it nationally and in some countries.
If the song is to be registered as a trademark you will need to contact the US Patent & Trademark office. For copyright protection, the US Copyright Office (see related links below).
You can enforce of trademark the name of the catalog (unless it is generic or descriptive) and register the copyright as a publication, possibly as a serial. Mention in the catalog that it is copyrighted and the name is a trademark, and that unauthorized copying or distribution is not allowed.
No, your book is copyrighted whether or not it is registered and whether or not you intend to enforce the copyright during your lifetime.
There are hundreds of towns worldwide that have registered their names for such things as local festivals and other attractions.
Generally, you must register a trademark in any country where you plan to enforce it. There is also a European Community Mark that covers most of Europe, and also a Madrid Protocol that streamlines registration in a number of countries. A trademark does not have to be registered at all to be protected in the US, but it is much easier to enforce a registration.
Any name a company uses for some of its products is a trademark - by the mere fact of using it.You can also get a registered trademark, for more protection. In this case, you have to register your trademark (the name you use, or want to use) with some relevant institution. The details, of course, vary from one country to another.
The past tense of "register" is "registered."
If I own a trademark and YOU use it, then our relationship is contractual and the terms will dictate when it may be terminated, if ever. Also, if I own a trademark then you have no right to register it unless you can prove you have an exclusive license from me to use it. However, if I licensed you to use MY trademark without reserving any rights to monitor the quality, then I may have forfeited any right to the trademark.
The most important reason to register a trademark is to make sure you own it and that no-one else has that trademark already or you may find yourself getting sued.
No, but you can register it as a trademark.