Patent US2925056A successfully refreshed from Google Patents.
US2925056A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Furrow attachment for grain seeders
Assignee: Individual
•
Filing: 1956-12-04
•
Granted: 1960-02-16
•
Expires: 1976-12-04
Abstract
No abstract record available.
Inventors
- 👤 Robert E Wade
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 19:16
CPC Classifications
A; A01; A01C; A01C5/00; A01C5/06; A01C5/062
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US522829A
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GB189904424A
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US1039275A
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US1580405A
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US1606799A
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DE684463C
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DE755559C
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US2396132A
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US2771832A
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US2779263A
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US2764111A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-15 | 1963-08-17 | 1964-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-15 | 1967-08-17 | 1968-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-15 | 1971-08-17 | 1972-02-16 | $7700.00 | Window Closed / Lapsed |