US665661A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machinery for grinding steel or other metallic pens.
Assignee: Individual
•
Filing: 1900-01-03
•
Granted: 1901-01-08
•
Expires: 1920-01-03
Abstract
No abstract record available.
Inventors
- 👤 Charles Bosworth Ketley
- 👤 Percy Wigley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:18
CPC Classifications
B; B24; B24B; B24B9/00; B24B9/02; B24B9/06; B24B9/08; B24B9/10; B24B9/102
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1904-01-08 | 1904-07-09 | 1905-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1908-01-08 | 1908-07-09 | 1909-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1912-01-08 | 1912-07-09 | 1913-01-08 | $7700.00 | Window Closed / Lapsed |