patent fee

• 专利费

patent fee的用法和样例：

例句

1. If the fees are not paid, then the patent is said to have lapsed.
   如果不付专利费，这项专利就告失效。
2. Now, so far as obligations are concerned, the patent owner must pay an annual fee for his patent.
   至于义务，专利权人每年必须缴纳专利费。