no
20 years
2 years
A 12-month novelty grace period is available if the invention is disclosed by the applicant or its agent in any form of communication within one year of the filing date or priority date, or exhibited at a national/international exhibition. Appropriate evidence must be submitted at the time of application.
Yes, a utility model can be converted into an invention during the formality examination period within 90 days from the filing date.
A 12-month novelty grace period is available if the invention is disclosed by the applicant or its agent in any form of communication within one year of the filing date or priority date, or exhibited at a national/international exhibition. Appropriate evidence must be submitted at the time of application.
via Paris Convention : 6 months from earliest priority date.
no
no
10 years
no