no
no
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.
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.
20 years (Bangladesh Patents Act 2022)
DPDT only conducts formality examination of design patent applications, not substantive examination.
6 months before the filing date/priority date.
no
2 years
no
no