US2783036A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cutter head for boring type continuous miner
Assignee: Goodman Manufacturing Co LP
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Filing: 1953-07-09
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Granted: 1957-02-26
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Expires: 1973-07-09
Abstract
No abstract record available.
Inventors
- 👤 Richard C Lundquist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:53
CPC Classifications
E; E21; E21C; E21C27/00; E21C27/10; E21C27/12; E21C27/124; E21C35/00; E21C35/18; E21C35/19; E21C35/191
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1644943A
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US1645003A
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US1726963A
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US2644679A
Cited
US2550202A
Cited
US2548952A
Cited
US2587065A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-02-26 | 1960-08-27 | 1961-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-26 | 1964-08-27 | 1965-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-26 | 1968-08-27 | 1969-02-26 | $7700.00 | Window Closed / Lapsed |