Filing Language: English | |
| via Paris Convention | |
Necessary documents:
| |
Attachments (if any)
*Bangladesh patent application documents need notarization | |
no
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)
20 years (Bangladesh Patents Act 2022)
no
DPDT only conducts formality examination of design patent applications, not substantive examination.
1 year
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.
DPDT conducts formality examination and substantive examination of invention patent applications. The substantive examination starts automatically, and the applicant does not need to file a separate request for substantive examination. If the conditions for patent granted are met, the patent application will enter the public stage. If there is no objection within 4 months after publication, the patent application will be authorized.
- Authorization Fee: None
- Annuity: payable year by year starting from the 6th year from the date of application
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.