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
- via Paris Convention : 12 months from earliest priority date.
- via Nationalization of PCT : 30 months from the earliest priority date.
20 years
Reinstatement of priority on grounds of "due care" accepted.
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.
via Paris Convention : 6 months from earliest priority date.
The initial period of protection is 6 years, which can be renewed twice, up to a maximum of 10 years.
Reinstatement of priority on grounds of "due care" accepted.
no
no