The short answer
You can withdraw a Bangladesh patent application at any time before grant (Section 10). You can refile the same invention only if it was not disclosed, no priority was claimed and no enforceable rights arose. The new application gets a new filing date.
When can you withdraw?
Section 10(1) lets you withdraw an application at any time before it is granted. For a withdrawal that allows refiling, all three conditions in Section 10(2) must hold.
- The application was withdrawn before it was opened to public inspection
- No priority was claimed from an earlier application
- No proceedings are pending in Bangladesh about rights claimed under the application
Refiling the same invention
Under Section 10(3) you may file the invention again as a fresh application, but you cannot claim rights or priority from the withdrawn one. You start again with a new filing date, so check for anything published in between.
Example. You file a smart irrigation device and later find the specification needs rework. If nothing has been published or claimed as priority, you can withdraw, correct it and refile. The filing date is then the date of the new application.
Withdrawal and refiling questions
Can I keep my original filing date after refiling?
No. The new application is independent and has its own filing date.
Can I withdraw after grant?
No. Withdrawal is possible only before the application is granted.
Can I refile if I claimed priority?
Not under the Section 10(2) conditions. Take advice first.
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