Patent US2225185A successfully refreshed from Google Patents.
US2225185A
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US
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Mining machine
Assignee: Goodman Manufacturing Co LP
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Filing: 1938-11-25
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Granted: 1940-12-17
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Expires: 1958-11-25
Abstract
No abstract record available.
Inventors
- 👤 William W Sloane
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:03
CPC Classifications
E; E21; E21C; E21C35/00; F; F16; F16H; F16H48/00; F16H48/12; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19005; Y10T74/19023; Y10T74/19074; Y10T74/19121
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) | 1943-12-17 | 1944-06-17 | 1944-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-12-17 | 1948-06-17 | 1948-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-12-17 | 1952-06-17 | 1952-12-17 | $7700.00 | Window Closed / Lapsed |