Patent US3040443A successfully refreshed from Google Patents.
US3040443A
Expired / Lapsed
US
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Crop dryer
Assignee: Deere and Co
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Filing: 1959-06-10
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Granted: 1962-06-26
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Expires: 1979-06-10
Abstract
No abstract record available.
Inventors
- 👤 Edward C Bopf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:20
CPC Classifications
F; F26; F26B; F26B9/00; F26B9/10; F26B9/103; F26B9/06; F26B9/08; F26B9/082; F26B9/087
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-25 | 1965-12-25 | 1966-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-25 | 1969-12-25 | 1970-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-25 | 1973-12-25 | 1974-06-26 | $7700.00 | Window Closed / Lapsed |