The trademark name must be available for use in Pennsylvania. Is trademark registration in Nigeria valid internationally?Trademarks are registered at the Nigerian Trade Marks Registry. The validity term of a trademark in Nigeria is 7 years from the filing date and renewable for the successive periods of 14 years. You can register your trademark at the trademark registry, Ministry of industry, Trade and Investment, Abuja Nigeria. This article examines some salient provisions of the NTMA and their implications for foreign trade mark proprietors who trade in Nigeria, or who seek to do so. Then, an Acceptance Form is usually issued within one to three months. - Filing unregistered trademarks before a court of law after registration is now possible. RTI is a nonprofit research institute dedicated to improving the human condition. Explore our services, practice areas and more.