|
The ornamental design for an electric doorbell, as shown and described.
|
This design product is used for obtaining one or more of image information, sound information and video information outside a door, as well as alerting a request to open the door, etc.
Wang, Yajun, Kao, Maofeng, Li, Kaining
Patent | Priority | Assignee | Title |
ER4331, | |||
ER8475, | |||
ER88, |
Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Feb 04 2021 | WANG, YAJUN | SHANGHAI IMILAB TECHNOLOGY CO , LTD | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 055302 | /0209 | |
Feb 04 2021 | KAO, MAOFENG | SHANGHAI IMILAB TECHNOLOGY CO , LTD | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 055302 | /0209 | |
Feb 04 2021 | LI, KAINING | SHANGHAI IMILAB TECHNOLOGY CO , LTD | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 055302 | /0209 | |
Feb 17 2021 | SHANGHAI IMILAB TECHNOLOGY CO., LTD. | (assignment on the face of the patent) | / |
Date | Maintenance Fee Events |
Date | Maintenance Schedule |