Filing Language: English | |
| via Paris Convention | |
Necessary documents:
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Attachments (if any)
*Bangladesh patent application documents need notarization | |
20 years (Bangladesh Patents Act 2022)
DPDT only conducts formality examination of design patent applications, not substantive examination.
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)
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Inventions under the via Paris Convention : 12 months from the earliest priority 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.
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6 months before the filing date/priority date.
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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.