US Trademark Classification US16 Paper and stationery Ink pens Class 16 Ink pens 016-346 墨水笔 Chinese 墨水笔 English Ink pens Spanish Bolígrafos de tinta Term ID 016-346 Class 16 Type Goods Status Active · added, not since modified (A) Effective date 1991-04-02 Version 07-1997