30. An unregistered trade mark shall be assignable and transmissible whether in connection with the goodwill of a business or not: Provided that, except in connection with the goodwill of a business, assignment or transmission shall be permissible only if¬-(a) at the time of assignment or transmission of the un¬registered trade mark it is used in the same business as a registered trade mark, and(b) the registered trade mark is assigned or transmitted at the same time and to the same person as the un¬registered trade mark, and(c) the unregistered trade mark relates to goods in respect of which the registered trade mark is assigned or transmitted.