How do you check if a business name is trademarked?

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Tags

1. #trademark
2. #electronic
3. #website
4. #search
5. #start
6. #using
7. #choose
8. #trademarks
9. #business
10. #screen
11. #follow
12. #registered
13. #federally
14. #center
15. #instructions
16. #uspto
17. #database