3-8 years
Indian invention patents need to undergo formality examination and substantive examination, and the applicant/anyone should submit a request for substantive examination within 48 months from the filing date.
no
7 months
no
15 years
- Authorization Fee: None
- Annuity: The renewal fee is paid every 5 years. If the renewal fee is not paid within the time limit, it can be paid within the 6-month grace period and the penalty should be paid at the same time.
Indian Patent Office
English: Indian Patent Office, abbreviation: IPO
Website: www.ipindia.gov.in
Indian Invention Patent Search: Intellectual Property India (ipindiaservices.gov.in)
20 years
- via Paris Convention : 12 months from earliest priority date.
- via Nationalization of PCT : 31 months from earliest priority date.
yes