2 years
6 months before the filing date/priority date.
no
1 year
20 years (Bangladesh Patents Act 2022)
- 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
Inventions under the via Paris Convention : 12 months from the earliest priority date.
via Paris Convention : 6 months from earliest priority date.
no
2 years