Safe grating door
USD457649S1 · kind S1 · design
5Cited by
2References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 30, 2000 |
| Grant date | May 21, 2002 |
| Priority date | — |
| Expiry date | May 21, 2016 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.