Patent US3398423A successfully refreshed from Google Patents.
US3398423A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corn cleaner
Assignee: KEY ELECTRO SONIC Corp A CORP OF OR
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Filing: 1966-03-14
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Granted: 1968-08-27
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Expires: 1986-03-14
Abstract
No abstract record available.
Inventors
- 👤 Francis A Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:15
CPC Classifications
B; B02; B02B; B02B1/00; B02B1/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1003138A
Cited
US2115107A
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US2184406A
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US2422399A
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US2586223A
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US3024907A
Cited
GB821380A
Cited
FR1176428A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-27 | 1972-02-26 | 1972-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-27 | 1976-02-26 | 1976-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-27 | 1980-02-26 | 1980-08-27 | $7700.00 | Window Closed / Lapsed |