Patent Filing in Sierra Leone
File your PCT national phase application in Sierra Leone with the Administrator and Registrar General's Department (Sierra Leone) through AnalystIP, within 31 months from the priority date. Every requirement below is taken from the WIPO PCT Applicant's Guide and kept up to date by our team.
When is your national phase deadline in Sierra Leone?
Enter the earliest priority date of your PCT application (or the international filing date if there is no priority).
Patent filing in Sierra Leone: key facts
Reinstatement of rights permitted (Rule 49.6)
None
20 years from the international filing date
Official fees for patent filing in Sierra Leone
Filing in several countries? Compare fees with other countries →
Standard official fees (general)
From the WIPO PCT Applicant's Guide, updated March 20, 2025. Amounts. Your exact fees depend on your application: use the calculator above.
| Fee | Amount | Notes |
|---|---|---|
| Patents: National fee | Refer to the Office (amounts not yet known) | |
| Utility models: National fee | Refer to the Office (amounts not yet known) |
Fee reductions: None
National phase entry requirements
Time limit
31 months from the priority date (Article 22(3) and Article 39(1)(b); same for Chapter I and II)
Also available through ARIPO (31 months).
Translation
Under Article 22: description, claims (as amended only, together with any Article 19 statement, if amended), text matter of drawings. Under Article 39(1): description, claims, text matter of drawings; amended parts only as amended in the annexes to the IPER. Due within the Article 22 or 39(1) time limit.
Late entry and reinstatement
Reinstatement of rights permitted (Rule 49.6)
Agent and power of attorney
Required if the applicant is not resident in Sierra Leone; any natural or legal person resident in Sierra Leone may act
Special requirements of the office
- Appointment of an agent if the applicant is not resident in Sierra Leone
Other information
- ARIPO protection also available (AP)
- Office accepts restoration of priority by receiving Office and requests for restoration (consult the Office for criteria/fees)
- Annex SL.I (fees) and national phase procedure: information not yet available
- Inventor name and address must be in the request; otherwise invitation
- Colour drawings: refer to the Office
- Office does not act as receiving Office; RO functions delegated to RO/AP
Source: WIPO PCT Applicant's Guide, national chapter, updated March 20, 2025.
Patent filing in Sierra Leone: questions
What is the deadline for PCT national phase entry in Sierra Leone?
31 months from the earliest priority date.
Can I enter the national phase in Sierra Leone after the deadline?
Reinstatement of rights permitted (Rule 49.6)
In which language must the application be filed in Sierra Leone?
English. Under Article 22: description, claims (as amended only, together with any Article 19 statement, if amended), text matter of drawings. Under Article 39(1): description, claims, text matter of drawings; amended parts only as amended in the annexes to the IPER. Due within the Article 22 or 39(1) time limit.
Do I need a local patent attorney in Sierra Leone?
Required if the applicant is not resident in Sierra Leone; any natural or legal person resident in Sierra Leone may act
Are there official fee reductions in Sierra Leone?
None
How much does patent filing in Sierra Leone cost?
The cost is the official fees of the patent office plus professional fees. The standard official fees from WIPO are listed on this page; the calculator works out the exact official fees for your application (pages, claims, applicant type) after a quick email check, and our team sends a full quote on request.
File in Sierra Leone with AnalystIP
- One point of contact for national phase entry in 150+ countries
- Deadlines, translations, local agents and formalities handled for you
- Every cost set out before you instruct