no
3 months
- via Paris Convention : 6 months from earliest priority date.
- Hague Agreement route: 6 months from earliest priority date.
- EU appearance route: 6 months from the earliest priority date.
20 years
12-14 months
25 years
Portuguese National Institute of Industrial Property
English: Portuguese Institute of Industrial Property, abbreviation: INPI
URL: https://inpi.justica.gov.pt/
Portuguese invention patent search: Pesquisa Online - Patentes (justica.gov.pt)
Reinstatement of priority is accepted on grounds of "due care."
no
no
The initial protection is 6 years, which can be extended twice, up to a maximum of 10 years.