20 years
- How long is the PCT period for Portuguese invention patent application
- How many years is the protection period of Portuguese invention patent application
- Is a utility model application eligible for DAS in Portugal?
- Novelty Grace Period for Portuguese Invention Patent Application
- Which is the competent authority for patent applications for inventions in Portugal?
- How long is the period for filing an industrial design application in Portugal?
- How many years is the protection period for utility model applications in Portugal?
- What are the requirements for the design application documents in Portugal?
- Instructions for Authorization of Designs in Portugal and Annual Fees
- Characteristics of the Portuguese invention patent application process