Patent protection comes about with the publication of the application. The effect of the protection IS retroactive to the day of application. 专利保护随着发明专利申请公布而开始,专利保护的效力则可追溯到申请之日。
2.
They receive a pay RISE retroactive to last January. 他获得从去年1月份开始补发的增加工资。
3.
The new law WAS made retroactive to 1 January. 新法令生效日期可追溯到1 月1 日.
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