Patent US2684022A successfully refreshed from Google Patents.
US2684022A
Expired / Lapsed
US
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Cultivator miller and tine therefor
Assignee: Individual
•
Filing: 1948-05-10
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Granted: 1954-07-20
•
Expires: 1968-05-10
Abstract
No abstract record available.
Inventors
- 👤 George E Smithburn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:35
CPC Classifications
A; A01; A01B; A01B33/00; A01B33/08; A01B33/14; A01B33/142; A01B33/144
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1704263A
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US2020524A
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US2309157A
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US2366571A
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US2366625A
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US2502094A
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US2515268A
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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) | 1957-07-19 | 1958-01-18 | 1958-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-07-19 | 1962-01-18 | 1962-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-07-19 | 1966-01-18 | 1966-07-20 | $7700.00 | Window Closed / Lapsed |