20. (1) No person shall be entitled to institute any proceeding to prevent, or to recover damages for, the infringement of an unregistered trade mark unless such trade mark has been continuously in use since before the 25th day of February, 1937, by such person or by a predecessor in title of his and unless an application for its registration, made within five years from the commencement of this Act, has been refused; and the Registrar shall, on application in the prescribed manner, grant a certificate that such application has been refused. (2) Nothing in this Act shall be deemed to affect rights of action against any person for passing off goods as the goods of another person or the remedies in respect thereof.