no
- Authorization Fee: None
- Annuity: payable year by year starting from the 6th year from the date of application
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.
6 months before the filing date/priority date.
no
2 years
no
no
20 years (Bangladesh Patents Act 2022)
no