How to create a copyright free logo

logos are covered by trademark (not copyright. slightly different). if you want to know if another company has already trademarked it you do a search on gov.uk. it's free but not sure how user friendly it is.

bear in mind, this will only check for trademarkes in the uk and not the us or eu.

gov.uk you can also apply to register your trademark for a fee; the office then checks to see if it resembles any current trademarks before approval.

https://www.gov.uk/how-to-register-a-trade-marki