US830586A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coal-cutting machine.
Assignee: Individual
•
Filing: 1905-08-18
•
Granted: 1906-09-11
•
Expires: 1925-08-18
Abstract
No abstract record available.
Inventors
- 👤 Abram S Hamilton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:12
CPC Classifications
F; F16; F16M; F16M11/00; F16M11/02; F16M11/04; F16M11/06; F16M11/12
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) | 1909-09-10 | 1910-03-12 | 1910-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1913-09-10 | 1914-03-12 | 1914-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1917-09-10 | 1918-03-12 | 1918-09-11 | $7700.00 | Window Closed / Lapsed |