Indian invention patent application authorization and annual fee instructions

Authorization Fee: None

Annuity: The applicant shall pay the commenced and all due annual fees within 3 months from the date of granted. The annual fee shall be calculated and paid year by year from the third year from the application date, and shall be paid before the application date of each year. Overdue payment may be made within 6 months of the overdue period.

Applicants are required to provide the Indian Patent Office with a report on the work of the granted patent, stating the commercial work status of the patent in the previous year, before March 31 of each year.