As previously advised, a recent change in policy by the Angolan Patent Office has resulted in the due dates for the payment of annuities now being calculated from the international filing date, rather than from the date of filing the application in Angola, for PCT-derived cases. No back annuities will be payable on existing cases, but moving forward, annuities are now payable on the first and each subsequent anniversary of the international filing date, starting with the next such anniversary on existing cases. 

In addition, the term of such patents will now be 15 years from the international filing date, rather than from the local filing date.