expired patent 中文意思是什麼
expired patent
解釋
過期專利-
But columbia received another patent in 2002 on what the various plaintiffs claim is essentially the same technology covered by those that had expired : a method for inserting human genes into hamster cells to identify cells that will produce large volumes of proteins from those genes
但是根據幾個原告的說法，哥大在2002年又取得一項專利，據說涵蓋的技術卻與過期專利幾乎相同：一種將人類基因植入倉鼠細胞，藉以辨認何種細胞可以產生大量人類蛋白質的方法。 -
The work was done in the early 1980s, and the first patent on that work expired late in 2004
這項工作在20世紀80年代早期進行的，關于這項工作的第一個專利在2004年底失效。
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