Patent US2687307A successfully refreshed from Google Patents.
US2687307A
Expired / Lapsed
US
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Seed broadcasting apparatus
Assignee: Individual
•
Filing: 1953-01-22
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Granted: 1954-08-24
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Expires: 1973-01-22
Abstract
No abstract record available.
Inventors
- 👤 Donald J Austermiller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:45
CPC Classifications
A; A01; A01C; A01C17/00; A01C17/006
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US351988A
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US1391772A
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US1668657A
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US2334376A
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US2463855A
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US2517151A
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US2562422A
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US2460769A
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US2561002A
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US2632651A
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US2513215A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-23 | 1958-02-22 | 1958-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-23 | 1962-02-22 | 1962-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-23 | 1966-02-22 | 1966-08-24 | $7700.00 | Window Closed / Lapsed |