And the trademark rights can be renewed.

而且商标权可以办延续手续。

Is there a time limit for trademark rights?

商标权有有效期吗？

The same happened in the US where Jaques sold the trademark rights to the Parker Brothers who made sure that other companies and associations weren't referring to it as Ping-Pong.

同样的事情发生在美国，Jaques 将商标权卖给了 Parker Brothers，Parker Brothers 确保其他公司和协会不会将其称为 Ping-Pong。