Patent US2679326A successfully refreshed from Google Patents.
US2679326A
Expired / Lapsed
US
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Power shovel
Assignee: Individual
•
Filing: 1949-11-23
•
Granted: 1954-05-25
•
Expires: 1969-11-23
Abstract
No abstract record available.
Inventors
- 👤 Isaksen Elmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:18
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/28; E02F3/36; E02F3/40; E02F3/401; E02F3/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1362566A
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US1505195A
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US1921917A
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US2025753A
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US2410567A
Cited
US2516686A
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US2585095A
Cited
US2514622A
Cited
US2575552A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-24 | 1957-11-23 | 1958-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-24 | 1961-11-23 | 1962-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-24 | 1965-11-23 | 1966-05-25 | $7700.00 | Window Closed / Lapsed |