Why do trademarks exist?

Answer 1

A trademark or trade mark (represented by the symbol ™)[1] or mark is a distinctive sign or indicator of some kind which is used by an individual, business organization or other legal entity to identify uniquely the source of its products and/or services to consumers, and to distinguish its products or services from those of other entities. A trademark is a type of intellectual property, and typically a name, word, phrase, logo, symbol, design, image, or a combination of these elements.[2] There is also a range of non-conventional trademarks comprising marks which do not fall into these standard categories.

The owner of a registered trademark may commence legal proceedings for trademark infringement to prevent unauthorized use of that trademark. However, registration is not required. The owner of a common law trademark may also file suit, but an unregistered mark may be protectable only within the geographical area within which it has been used or in geographical areas into which it may be reasonably expected to expand.

The term trademark is also used informally to refer to any distinguishing attribute by which an individual is readily identified, such as the well known characteristics of celebrities. When a trademark is used in relation to services rather than products, it may sometimes be called a service mark, particularly in the United States

http://en.wikipedia.org/wiki/Trademark

Answer 2

To avoid confusion in the minds of the public as to which company is responsible for the goods or service that they are purchasing.

so other companys can't use there lines or names. that is any tradmarked lines or names

Answer 3

A trademark protects a good or service offered by a company from infringement or damage of reputation by another company. With a trademark, you have legal recourse to sue another company that uses your likeness to further their own business ventures. This includes both registered and unregistered trademarks. In short, a trademark is a word, phrase, symbol, design, or combination that helps consumers identify a particular product.

Answer 4

The major purpose of "Trademark" is to keep the rights of its owner and to prevent others from copying it without permission from the owner.