US Trademark Classification US16 Paper and stationery 毡尖笔（016-3673） Class 16 毡尖笔 016-3673 Chinese 毡尖笔 English Felt-tipped pens Term ID 016-3673 Class 16 Type Goods Status Active · added, not since modified (A) Effective date 2024-03-21 Version 12-2024