Granted Patent
S1
US 1,019,030 · App. 29/811,785 · Granted Mar 19, 2024
Cleaning device
Inventors:
Lei Zhao (Beijing, CN); Chongyue Xu (Beijing, CN); Cheng Tang (Beijing, CN); Fei Duan (Beijing, CN); Liang Zhong (Beijing, CN)
Assignee:
Beijing Shunzao Technology Co., Ltd.
View Patent ↗
Loading inventors, assignments & file history…
Claims (1)
The ornamental design for a cleaning device, as shown and described.
Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded Oct 16, 2021
From: ZHAO, LEI; XU, CHONGYUE; TANG, CHENG; DUAN, FEI; ZHONG, LIANG
To: BEIJING SHUNZAO TECHNOLOGY CO., LTD.
Reel/Frame 057811/0604 →
Priority Claims (1)
CN 202130217972.7
· Apr 16, 2021
· national