各位朋友：
关于欧洲专利法律状态的问题一直比较纠结，我是用的这个网站查的：https://register.epo.org。
以专利EP0905128B1为例，法律状态链接：https://register.epo.org/applica ... n&tab=legal。2005.08申请专利期延长至20190921，2008.04.30又说失效，……，2013年又在几个国家付了专利维持费用。真是纠结死了。这篇专利到底是由于未缴年费失效了？还是延期了？
期待高手指点！谢谢！
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