1. The registered trademark is protected by the trademark law and can be used as a corporate logo for publicity.

2. Trademark application in the Trademark Office, cost1000; Apply for copyright in the Copyright Bureau, 100 yuan.

3. Suggestion: If it is the logo of the enterprise name, you can apply for copyright registration; The product logo still needs a registered trademark.

You can scare people. It has no legal effect. It is not illegal for others to steal from you.