yes. An invention applicant may propose to change the type of invention from an invention to a utility model during the process of examining the application or within two months from the date of the final decision on the refusal to grant a patent. The utility model application shall be deemed to have been filed from the date of the invention application. A utility model application converted from an invention must fully meet the requirements for utility model documents.
no
20 years
4-5 years
10 years
Reinstatement of priority is accepted on grounds of "due care."
1-6 months
no
A 6-month novelty grace period is available if the disclosure is caused by a third party in bad faith.
2-4 years
yes