no
no
DPDT only conducts formality examination of design patent applications, not substantive examination.
no
6 months before the filing date/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.
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.
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
Filing Language: English
via Paris Convention Necessary documents:
- Abstract
- Abstract Drawing
- Claim
- Specification
- Drawing
Attachments (if any)
- Power of Attorney
- Certified Priority Document
- Sequence Listing (PDF format and TXT format)
- Certificate of Deposit of Microorganisms and its Bengali Translation
- Certificate of Microorganism Survival and its Bengali Translation
- Priority certificate/Certified Priority Document English translation
- Declaration of Ownership/Certification of Employment/Assignment of priority
- Assignment for Patent Right Transfer
- Notification issued by CNIPA notify the applicant the application has passed through the security review
- translator statement
*Bangladesh patent application documents need notarization