FAQ
In Japan the annual fees for the first three years have to be paid in a lump sum within 30 days of...
https://www.epo.org/en/service-support/faq/searching-patents/asian-patent-information/japan/after-grant
After grant
Questions and answers
FAQ
Yes. The grace period is six months from the expiry date of the original payment period, subject to...
FAQ
In Japan, if you miss both the deadline for payment of the annual fees and the six-month grace...
FAQ
Yes. In Japan, supplementary protection certificates (SPCs) are known as "patent term extensions"...
FAQ
Between 1 January 2004 and March 2015, the only way to do this was via invalidation proceedings...