US Trademark Classification US11 Lighting, heating and air conditioning 筒灯（011-4019） Class 11 Downlights 011-4019 筒灯 Chinese 筒灯 English Downlights Spanish Downlights Term ID 011-4019 Class 11 Type Goods Status Active · added, not since modified (A) Effective date 2017-07-13 Version 11-2017