Patent US2064135A successfully refreshed from Google Patents.
US2808253A
Expired / Lapsed
US
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Continuous miner of the rotating drum type
Assignee: Goodman Manufacturing Co LP
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Filing: 1952-11-08
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Granted: 1957-10-01
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Expires: 1972-11-08
Abstract
No abstract record available.
Inventors
- 👤 Fred B Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:54
CPC Classifications
E; E21; E21C; E21C27/00; E21C27/20; E21C27/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US307751A
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US1195396A
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US1148975A
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US1143897A
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US2269781A
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US2368863A
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US2630308A
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US2643106A
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US2677536A
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US2692130A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-30 | 1961-04-01 | 1961-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-30 | 1965-04-01 | 1965-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-30 | 1969-04-01 | 1969-10-01 | $7700.00 | Window Closed / Lapsed |