Tread module for a horizontal walkway or stairway
USD656241S1 · kind S1 · design
3Cited by
1References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 22, 2010 |
| Grant date | Mar 20, 2012 |
| Priority date | — |
| Expiry date | Mar 20, 2026 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.