2. Utility model: automatic protection for 5 years from the date of application, which can be extended twice for 2 years each time. The longest protection period is 10 year.
3. Design: automatic protection for 5 years from the date of application. It can be extended for four times, each time for five years.
The Portuguese Patent Office conducts substantive examination of invention patents and formal examination of utility model and design patents.
Portuguese patent law defines appearance design as "a new and original design that combines the lines, patterns, shapes, positions or three-dimensional shapes and colors of products."
The Portuguese design application needs a brief description of the pictures or photos of the design, and the brief description shall not exceed 50 words. If the design is complex, it is necessary to display and mark the parts of the design that are visible during normal use. If you use symbols related to a country or religion, you need to submit authorization for approval. Portuguese designs are only subject to formal review. If it does not meet the requirements, the applicant has one month to make amendments. After the application is approved, the applicant may apply for an extension of the publicity period, but not later than 30 months from the date of application (priority date, if any).