Patent US2814528A successfully refreshed from Google Patents.
US2814528A
Expired / Lapsed
US
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Device for applying soluble fertilizer
Assignee: Individual
•
Filing: 1954-02-01
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Granted: 1957-11-26
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Expires: 1974-02-01
Abstract
No abstract record available.
Inventors
- 👤 Blasczyk Leon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:11
CPC Classifications
A; A01; A01C; A01C23/00; A01C23/04; A01C23/042
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2218790A
Cited
US2220227A
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US2481279A
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US2590353A
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US2593178A
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US2667663A
Cited
US2641507A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-25 | 1961-05-27 | 1961-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-25 | 1965-05-27 | 1965-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-25 | 1969-05-27 | 1969-11-26 | $7700.00 | Window Closed / Lapsed |