US Trademark Classification US30 Staple foods, coffee, tea and confectionery 披萨饼皮（030-270） Class 30 披萨饼皮 030-270 Chinese 披萨饼皮 English Pizza crust Spanish corteza de pizza Term ID 030-270 Class 30 Type Goods Status Active · added, not since modified (A) Effective date 1991-04-02 Version 07-1997