Is it legal to use my trademark even if it is not yet registered?

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Articles in this section

• How many applications should I file?
• Is there a time frame for the trademark registration approval?
• If I register my trademark in the European Union, do I have protection in other territories?
• Do I need to sign a Power of Attorney?
• Are there any benefits from a pre-filing use of the trademark?
• Will there be problems in case I don’t use my trademark after registration?
• What are the types of trademark that can be registered in the European Union?
• What are the phases of application after a trademark has been filed in the European Union?
• What type of trademark is not registrable?
• Does European Union use the "Nice Classification" system?