no
no
via Paris Convention : 6 months from earliest priority date.
IPONIGERIA only conducts formality examination and unity of invention examination for invention patent applications.
IPONIGERIA conducts only formality examination of designs.
20 years
Trademarks, Patents and Designs Commercial Law Section, Nigerian Ministry of Trade and Investment
English: Patents and Designs Registry Commercial Law Department Federal Ministry of Industry, Trade and Investment, abbreviation: IPONIGERIA
no
The initial protection is 5 years, which can be renewed twice, each time for 5 years, and the maximum protection can be 15 years.
6 months before the filing date/priority date.
no