yes. Patent applicants can change the patent type from invention to petty patent (utility model) before the patent application is granted. The converted patent application has the filing date of the original patent application.
The initial period of protection is 6 years, which can be renewed twice, up to a maximum of 10 years.
no
20 years
6 months
DIP conducts substantive examination of design patent applications, and only examines whether the conditions of novelty and industrial applicability are met.
If within 12 months before the filing date/priority date, the essence or details of the invention are maliciously disclosed, or exhibited by the inventor in an international or official exhibition, the invention does not lose its novelty.
via Paris Convention : 6 months from earliest priority date.
no
yes. Patent applicants can change the patent type from invention to petty patent (utility model) before the patent application is granted. The converted patent application has the filing date of the original patent application.
no