A certified copy of the priority document needs
to be filed within 18 months from the earliest
priority date (with details needed at filing).
The priority document does not need to be
submitted if the priority application was filed in
JP, EP, or US.
Unlike most countries that require signed
forms from the applicant, the Korean
Intellectual Property Office accepts scanned
copies of documents.
As of January 1 2015, Paris Convention
applications into Korea can be filed in English
with the Korean translation filed before the
14-month deadline. However, the official basic
fee with increase substantially and an agent
late fee will also apply.