Combined keylock facing panel and H-shaped retaining wall block
USD404146S · kind S · design
37Cited by
9References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 19, 1995 |
| Grant date | Jan 12, 1999 |
| Priority date | — |
| Expiry date | Jan 12, 2013 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.