Acoustical ceiling panel
USD263424S · kind S · design
6Cited by
1References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 27, 1979 |
| Grant date | Mar 16, 1982 |
| Priority date | — |
| Expiry date | Mar 16, 1996 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.