专利权的无效 meaning in English

invalidation of patent right

The representatives of the governments of china and america signed the recordal on intellectual property protection by governments of the p . r . c . and of the u . s . a . on january 17 , 1992 , effected as of march 17 , 1992 . bern convention took effect in our country on october 15 , 1992 , and universal copyright convention on october 30 , 1992 , which marked our entry into the international copyright protection system
专利复审委员会2001年7月1日之前作出的关于实用新型外观设计专利申请的复审决定或者关于实用新型外观设计专利权的无效宣告请求审查决定，申请人或者当事人在2001年7月1日之后收到的，该决定仍为终局决定。