US Trademark Classification US30 Staple foods, coffee, tea and confectionery 甜甜圈（030-339） Class 30 甜甜圈 030-339 Chinese 甜甜圈 English Doughnuts Spanish Donas Term ID 030-339 Class 30 Type Goods Status Active · added, not since modified (A) Effective date 1991-04-02 Version 07-1997