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Q56. Grace Period

Q56. Grace Period
 Is there Grace Period in Japan?

A56. Yes. According to Art 30, which was amended in 2011, an applicant can claim Grace Period of six months, if their invention loses novelty against the will of the applicant or if their invention loses novelty due to their own act. However, exceptionally, if their invention is published by the JPO or a foreign patent office, the applicant will receive no Grace Period.
 The effective date of amended Art 30 is April 1, 2012.