Patent US2688832A successfully refreshed from Google Patents.
US2688832A
Expired / Lapsed
US
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Adjustable rotary beater for agricultural machines
Assignee: Olson Manufacturing Co
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Filing: 1952-05-19
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Granted: 1954-09-14
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Expires: 1972-05-19
Abstract
No abstract record available.
Inventors
- 👤 John D Gordon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:53
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/01; A01D34/412; A01D34/42; A01D34/43; A01D34/435
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2335054A
Cited
US2556446A
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US2537586A
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US2571669A
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US2506054A
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US2585296A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-13 | 1958-03-15 | 1958-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-13 | 1962-03-15 | 1962-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-13 | 1966-03-15 | 1966-09-14 | $7700.00 | Window Closed / Lapsed |