Patent US2975526A successfully refreshed from Google Patents.
US2975526A
Expired / Lapsed
US
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Devices for heat treating kernels and seeds
Assignee: Heimbs & Sons
•
Filing: 1956-05-15
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Granted: 1961-03-21
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Expires: 1976-05-15
Abstract
No abstract record available.
Inventors
- 👤 Ernst G W Heimbs
- 👤 Walter C Kangro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:57
CPC Classifications
A; A23; A23N; A23N12/00; A23N12/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1221383A
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US1568738A
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US1563963A
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DE472391C
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US2132656A
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US2143505A
Cited
US2105778A
Cited
US2497501A
Cited
US2715282A
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US2857683A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-20 | 1964-09-19 | 1965-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-20 | 1968-09-19 | 1969-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-20 | 1972-09-19 | 1973-03-21 | $7700.00 | Window Closed / Lapsed |