US2533386A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fertilizer spreader
Assignee: Individual
•
Filing: 1946-08-19
•
Granted: 1950-12-12
•
Expires: 1966-08-19
Abstract
No abstract record available.
Inventors
- 👤 Edwin L Masters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:19
CPC Classifications
A; A01; A01C; A01C15/00; A01C15/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US140317A
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US515941A
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FR394489A
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US1241390A
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US1750710A
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US1965483A
Cited
US2258921A
Cited
US2278051A
Cited
US2359995A
Cited
US2350107A
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US2386493A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-11 | 1954-06-12 | 1954-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-11 | 1958-06-12 | 1958-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-11 | 1962-06-12 | 1962-12-12 | $7700.00 | Window Closed / Lapsed |