no
10 years
no
20 years
DGIP conducts formality examination and substantive examination of invention patent applications. The applicant should submit a request for substantive examination within 36 months from the filing date/priority date.
no
no
no
no
via Paris Convention : 6 months from earliest priority date.
- Authorization Fee: None
- Annuity: The applicant should pay the annual fee from the first year to the year of granted in one lump sum within 6 months from the date of granted (calculated from the date of application). Then the annual fee is paid year by year, and the deadline is one month before the application date of each year. If the annual fee is overdue, it can be paid within a grace period of 12 months, and a late fee will be paid.