FAQ
You must pay annual fees on the anniversary of the filing date, starting one year after filing. It...
https://www.epo.org/en/service-support/faq/searching-patents/asian-patent-information/iran/after-grant
After grant
Questions and answers
FAQ
Yes, a grace period of six months is allowed for late payment of the annual fee on payment of a 50%...
FAQ
No, the 20-year term for patents filed in Iran cannot be extended. Iranian Patent Law does not...
FAQ
After a patent has been granted, interested parties may file a request for invalidation at any time...