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US2659585A
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Power drive connection for combined rotatable and oscillatable mining tools
Assignee: Goodman Manufacturing Co LP
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Filing: 1951-06-29
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Granted: 1953-11-17
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Expires: 1971-06-29
Abstract
No abstract record available.
Inventors
- 👤 Robert A Mccallum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:16
CPC Classifications
E; E21; E21C; E21C31/00; E21C31/02; E21C31/04; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19019
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-16 | 1957-05-18 | 1957-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-16 | 1961-05-18 | 1961-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-16 | 1965-05-18 | 1965-11-17 | $7700.00 | Window Closed / Lapsed |