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只有相关技术方案获得专利权之后，专利权人才能请求他人就在临时保护期内使用相关技术方案的行为支付适当费用；《专利法》规定的临时保护的诉讼时效，专利权人要求支付使用费的诉讼时效为2年，自专利权人得知或者应当得知他人使用其发明之日起计算，但是，专利权人于专利权授予之日前2年已得知或者应当得知的，自专利权授予之日起计算。
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