2-4 years
There is a 6-month novelty grace period in Poland if the disclosure is caused by a third party in bad faith. Previously, there was no novelty grace period for patent applications in Polish IP legislation.
yes
20 years
no
2-4 years
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.
4-5 years
Polish Intellectual Property Office
English: Patent Office of the Republic of Poland, abbreviation: PPO
Website: uprp.gov.pl
Polish invention patent search: Wyszukiwarka prosta (uprp.gov.pl)
no
10 years