2-3 years
If the inventor or his client, the national office, or the information obtained directly or indirectly from the inventor leads to third-party disclosure, a novelty grace period of 12 months before the filing date/priority date can be enjoyed.
12 months
no
20 years
yes. The applicant may request that the patent type be converted from invention to utility model before the patent is granted.
no
- via Paris Convention : 12 months from earliest priority date.
- via Nationalization of PCT : 30 months from the earliest priority date.
If the inventor or his client, the national office, or the information obtained directly or indirectly from the inventor leads to third-party disclosure, a novelty grace period of 12 months before the filing date/priority date can be enjoyed.
10 years
Reinstatement of priority is accepted on grounds of "due care."