Grace Period/Prior knowledge
6 months novelty grace period is applicable if the inventor or his successor discloses the invention by exhibiting it at an officially recognised international exhibition.
Examination of patents are substantive and based on search and examination reports.
Duration & Maintenance
A patent has a duration of 20 years from the filing date, subject to renewal fees being paid. Where a renewal annuity is missed and not paid within six months of the date of the renewal, the patent will lapse. Restoration of the patent is at the discretion of the Director-General of ARIPO and may be requested.