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.
- Authorization Fee: None
- Annuity: payable year by year starting from the 6th year from the date of application
DPDT only conducts formality examination of design patent applications, not substantive examination.
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.
no
1 year
no
no
Inventions under the via Paris Convention : 12 months from the earliest priority date.
Filing Language: English Necessary documents:
- Exterior Design Picture (Six Views)
- A Brief Description
Attachments (if any):
- Power of Attorney
- Priority certification documents and their English translations of Certified Priority Documents
- Declaration of Ownership/Certification of Employment/Assignment of priority
Assignment for Patent Right Transfer
All patent application documents in Bangladesh need to be notarized