What is the difference between a registered trade-mark and an unregistered trade-mark?
A registered trade-mark is a mark that has been entered in the Register of Trade-marks. The Register of Trade-marks is the record of all trade-marks that have been formally applied for and registered in Canada. The Office of the Registrar of Trade-marks is the body that administers the Register.
You are not required to register your trademark - using a mark for a certain length of time can establish your ownership under common law.