Inventions under the via Paris Convention : 12 months from the earliest priority date.
1 year
no
no
- Grant fee: The applicant shall pay the granted official fee within 2 months after receiving the granted notice.
- Annuity: It needs to be paid year by year starting from the fifth year from the application date.
If the patent is disclosed due to the display at the exposition or unintentional disclosure, the novelty grace period can be enjoyed within 6 months before the filing date/priority date.
via Paris Convention : 6 months from earliest priority date.
- Authorization Fee: None
- Annuity: payable year by year starting from the 6th year from the date of application
no
no
20 years (Bangladesh Patents Act 2022)