US Trademark Classification US21 Household and kitchen utensils 奶酪盖（021-416） Class 21 奶酪盖 021-416 Chinese 奶酪盖 English Cheese covers Spanish cubiertas de queso Term ID 021-416 Class 21 Type Goods Status Active · added, not since modified (A) Effective date 1991-04-02 Version 07-1997