Wireless entrance communication device
USD819476S1 · kind S1 · design
46Cited by
42References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 17, 2018 |
| Grant date | Jun 5, 2018 |
| Priority date | — |
| Expiry date | Jun 5, 2033 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.