Grace Period/Prior knowledge
6-month grace period where disclosure was by the applicant at an officially recognised international exhibition or through unauthorised disclosure by a third party.
Formal examination with a state-of-the-art search and substantive examination (the search and substantive examination is rarely conducted in practice).
Duration & Maintenance
15 years with a possible 5-year extension period.
Annual maintenance payments.
No use requirement, but failure to work the invention within four years from the filing date may constitute a ground for the grant of a compulsory license.