Patent US2834172A successfully refreshed from Google Patents.
US2834172A
Expired / Lapsed
US
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Apparatus for harvesting castor beans
Assignee: BOARDMAN CO
•
Filing: 1955-10-19
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Granted: 1958-05-13
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Expires: 1975-10-19
Abstract
No abstract record available.
Inventors
- 👤 William S Wood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:11
CPC Classifications
A; A01; A01D; A01D45/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1646004A
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US1926388A
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US1931471A
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US1977784A
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US2507669A
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US2587553A
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US2656667A
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US2700857A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-12 | 1961-11-11 | 1962-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-12 | 1965-11-11 | 1966-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-12 | 1969-11-11 | 1970-05-13 | $7700.00 | Window Closed / Lapsed |