Patent US2575729A successfully refreshed from Google Patents.
US2575729A
Expired / Lapsed
US
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Ditching and loading device
Assignee: Individual
•
Filing: 1948-03-16
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Granted: 1951-11-20
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Expires: 1968-03-16
Abstract
No abstract record available.
Inventors
- 👤 Radakovich Archie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:17
CPC Classifications
E; E02; E02F; E02F7/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1379039A
Cited
US1702519A
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US736846A
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US765832A
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US897893A
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US1389888A
Cited
US1762060A
Cited
US2038809A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-19 | 1955-05-21 | 1955-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-19 | 1959-05-21 | 1959-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-19 | 1963-05-21 | 1963-11-20 | $7700.00 | Window Closed / Lapsed |