no
20 years
via Paris Convention : 6 months from earliest priority date.
6 months before the filing date/priority date.
no
IPONIGERIA only conducts formality examination and unity of invention examination for invention patent applications.
IPONIGERIA conducts only formality examination of designs.
yes. Please consult IPONIGERIA for applicable standards and charges.
The initial protection is 5 years, which can be renewed twice, each time for 5 years, and the maximum protection can be 15 years.
no
no