Push button mechanical pencil
USD285937S · kind S · design
8Cited by
6References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 24, 1984 |
| Grant date | Sep 30, 1986 |
| Priority date | — |
| Expiry date | Sep 30, 2000 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.