15 years
The novelty grace period is 6 months before the filing date/priority date.
The novelty grace period is 12 months before the filing date/priority date.
2 years
The novelty grace period is 12 months before the filing date/priority date.
8-10 years
Formal examination and substantive examination are required.
via Paris Convention : 6 months from earliest priority date.
15 years
no
20 years