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专利公报数据库OG-Official Gazette→official Gazette Notice for 2005→week#47 Dec 06,2005→Expiration of patents→Patents which expired on October12,2005 Due to fairtures to pay maintenance fees里面找到patent number为52551335的专利，这是通知专利权人（就是说专利权人可以启动恢复程序？还是说这条专利彻底终止了，案卷存入失效案卷库了。 |
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