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Patent US2947544A successfully refreshed from Google Patents.
US2947544A
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Fertilizer mixing and spreading machine
Assignee: Individual
•
Filing: 1956-11-08
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Granted: 1960-08-02
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Expires: 1976-11-08
Abstract
No abstract record available.
Inventors
- 👤 Arthur A Hurt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:15
CPC Classifications
E; E01; E01H; E01H10/00; E01H10/007; A; A01; A01C; A01C15/00; A01C15/005; A01C15/006; A01C15/18; A01C21/00; A01C17/00; A01C17/001; Y; Y10; Y10S; Y10S366/00; Y10S366/606
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1915758A
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US2079061A
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US2099369A
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US2421211A
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US2511514A
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US2596898A
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US2719030A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-02 | 1964-02-01 | 1964-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-02 | 1968-02-01 | 1968-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-02 | 1972-02-01 | 1972-08-02 | $7700.00 | Window Closed / Lapsed |