回複：關於中國商標、美國商標的問題

來源: 於 2013-04-16 22:22:10 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

X company has to register the mark in USPTO, in order to enforce it here. Before registration, X company cannot use circle R symbol, which indicates federal registration.  X company may get a warning from PTO.