Filing Language: English | |
| via Paris Convention | |
Necessary documents:
| |
Attachments (if any)
*Bangladesh patent application documents need notarization | |
no
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.
via Paris Convention : 6 months from earliest priority date.
2 years
20 years (Bangladesh Patents Act 2022)
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.