US2955810A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cutting device for the continuous cutting of coal and the like
Assignee: Goodman Manufacturing Co LP
•
Filing: 1959-05-11
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Granted: 1960-10-11
•
Expires: 1979-05-11
Abstract
No abstract record available.
Inventors
- 👤 Cedric E Mcwhorter
- 👤 John S Newton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:33
CPC Classifications
E; E21; E21C; E21C27/00; E21C27/20; E21C27/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1862814A
Cited
US2832579A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-11 | 1964-04-11 | 1964-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-11 | 1968-04-11 | 1968-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-11 | 1972-04-11 | 1972-10-11 | $7700.00 | Window Closed / Lapsed |