Trademark registration in Nigeria is a process that is initiated by the applicant filing an application in any of the 45 class(es) under which his goods or services may be registered,. Once the application is accepted by the Registry after an examination has been conducted, an acceptance letter is issued to the applicant and thereafter, the mark is published on a Trademark Journal. The acceptance of the mark by the Registry is not an evidence that the mark will be or has been registered. This article outlines how an applicant may still lose his trademark registration for failure to respond to any opposition by third parties. Under section 20 of the Nigeria’s Trade Mark Act, any person may, within two months from the date of publication of marks in the Trademark Journal, give notice to the Registrar of opposition to the Registration. This notice is required to be given in writing and in a prescribed Manner. The stages in opposition of trademark under the Act are simplified as follows: 1...