2-3 years
25 years
20 years
yes. Before the applicant receives the final decision, it may be proposed to change the type of invention from invention to utility model.
no
12-14 months
- via Paris Convention : 12 months from earliest priority date.
- via Nationalization of PCT : 30 months from the earliest priority date.
- Licensing Fee: None.
- Annuity: pay once every 5 years, and must be paid within 6 months before the due date of the application. If the annual fee is overdue, it can be paid within a grace period of 6 months, and a 50% penalty is required.
3 months
Portuguese National Institute of Industrial Property
English: Portuguese Institute of Industrial Property (INPI)
URL: https://inpi.justica.gov.pt/
Portuguese Utility Model Patent Search: Pesquisa Online - Patentes (justica.gov.pt)
yes. Before the applicant has received a final decision, an application to change the type of invention from a utility model to an invention may be proposed.