via Paris Convention : 6 months from earliest priority date.
The initial protection is 5 years, which can be renewed twice, each time for 5 years, and the maximum protection can be 15 years.
20 years
no
no
yes. Please consult IPONIGERIA for applicable standards and charges.
no
IPONIGERIA only conducts formality examination and unity of invention examination for invention patent applications.
via Paris Convention : 6 months from earliest priority date.
no
4-7 months or so