Any sign capable of distinguishing the goods or services of a given enterprise from similar goods or services of another enterprise can be considered a trademark eligible for protection. An example of a trademark can be word, design, ornament, combination of colours, plastic form, melody or other acoustic signal and a combination of such elements. 

Trademark registration lasts 10 years, starting from the date of filing a regular application with the Patent Office and may be extended for a future 10-year periods if requested by the trademark owner. 

Registration of a trademark comes after filing a regular application, examination of the application by Patent Office (in regard to: its distinctiveness, similarity to earlier registered trademarks, etc.), and paying a protection fee.