Patent US2605020A successfully refreshed from Google Patents.
US2605020A
Expired / Lapsed
US
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Seed planter attachment
Assignee: Individual
•
Filing: 1947-04-18
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Granted: 1952-07-29
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Expires: 1967-04-18
Abstract
No abstract record available.
Inventors
- 👤 Lawrence H Sarlls
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:46
CPC Classifications
A; A01; A01C; A01C7/00; A01C7/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US529686A
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US866747A
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US1237986A
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US1733749A
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US2061955A
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US2249791A
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US2299717A
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US2311251A
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US2472092A
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US2417700A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-29 | 1956-01-28 | 1956-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-29 | 1960-01-28 | 1960-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-29 | 1964-01-28 | 1964-07-29 | $7700.00 | Window Closed / Lapsed |