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Patent US2708397A successfully refreshed from Google Patents.
US2708397A
Expired / Lapsed
US
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Articulated frame for four-row planter frame and means for constructing same
Assignee: Deere and Co
•
Filing: 1950-01-11
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Granted: 1955-05-17
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Expires: 1970-01-11
Abstract
No abstract record available.
Inventors
- 👤 Curtiss L Cook
- 👤 Austin E Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:49
CPC Classifications
A; A01; A01C; A01C9/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1740751A
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US1636733A
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US1776860A
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US1754497A
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US1901421A
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US2101618A
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US2199089A
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US2437312A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-05-16 | 1958-11-15 | 1959-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-16 | 1962-11-15 | 1963-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-16 | 1966-11-15 | 1967-05-17 | $7700.00 | Window Closed / Lapsed |