US Trademark Classification US21 Household and kitchen utensils 擦洗海绵（021-572） Class 21 擦洗海绵 021-572 Chinese 擦洗海绵 English Scrub sponges Spanish Esponjas para fregar Term ID 021-572 Class 21 Type Goods Status Active · added, not since modified (A) Effective date 2001-06-01 Version 07-1997