- Authorization Fee: None
- Annuity: payable year by year starting from the 6th year from the date of application
no
no
via Paris Convention : 6 months from earliest priority date.
no
1 year
6 months before the filing date/priority 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.
20 years (Bangladesh Patents Act 2022)
It is protected for 5 years from the date of application, renewed every 5 years, and can be renewed twice, up to a maximum of 15 years.
- 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.