1 month
via Paris Convention : 12 months from earliest priority date.
via Nationalization of PCT : 30 months from the earliest priority date.
Validation of European Patent in EPO member states: within 3 months from the date of grant of the European patent.
Austrian Patent Office
English: Austrian Patent Office, abbreviation: ATPO
Website: Home | Das Österreichische Patentamt
Austrian Utility Model Patent Search: National Patents Search (patentamt.at)
1 month
yes. Before the patent is granted/rejected, the patent type can be changed from invention to utility model at the request of the applicant. Can only be converted once.
yes. If multiple designs have at least one of the same category, a maximum of 50 designs can be included in one design.
Austrian Patent Office
English: Austrian Patent Office, abbreviation: ATPO
Website: Home | Das Österreichische Patentamt
Austrian patent search for inventions: National Patents Search (patentamt.at)
ATPO conducts formality examination only for utility model patent applications. Although ATPO searches utility model patent applications, the search results do not affect the grant results. The applicant may amend the patent application after receiving the search report.
yes
Reinstatement of priority on grounds of "due care" and "unintentional/due care" accepted.
ATPO only conducts formality examination of design patent applications.