US Trademark Classification US28 Toys, games and sporting goods 围棋棋盘（028-978） Class 28 围棋棋盘 028-978 Chinese 围棋棋盘 English Go boards Spanish Tableros de Go Term ID 028-978 Class 28 Type Goods Status Active · added, not since modified (A) Effective date 2004-07-20 Version 08-2002