20 years (Bangladesh Patents Act 2022)
2 years
1 year
6 months before the filing date/priority date.
no
- Authorization Fee: None
- Annuity: payable year by year starting from the 6th year from the date of application
- 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.
no
DPDT only conducts formality examination of design patent applications, not substantive examination.
no
no