US Trademark Classification US19 Building materials 非金属横楣窗（019-1446） Class 19 非金属横楣窗 019-1446 Chinese 非金属横楣窗 English Non-metal transom windows Term ID 019-1446 Class 19 Type Goods Status Active · added, not since modified (A) Effective date 2023-01-01 Version 12-2023