6 months before the filing date/priority date.
- 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.
2 years
Bangladesh Patent and Trademark Office
English: Department of Patents, Designs and Trademarks Ministry of Industries, abbreviation: DPDT
Website: Department of Patents, Designs and Trademarks (DPDT)
Inventions under the via Paris Convention : 12 months from the earliest priority date.
- 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