Combined door knob and escutcheon
USD297911S · kind S · design
11Cited by
6References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 30, 1986 |
| Grant date | Oct 4, 1988 |
| Priority date | — |
| Expiry date | Oct 4, 2002 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.