Many countries, including Canada and the US, maintain an online trade-mark database that allows users to conduct a search of marks that have been registered and/or applied for in that jurisdiction.
For further information on trade-marks in Canada and to access the Canadian Trade-marks database, visit the Canadian Intellectual Property Office’s website.
For further information on US trademarks and to access the US Trademark Electronic Search System, visit the US Patent and Trademarks Office’s website.