Patent US923437A successfully refreshed from Google Patents.
US2497845A
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US
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Tobacco harvesting machine
Assignee: Individual
•
Filing: 1945-02-28
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Granted: 1950-02-21
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Expires: 1965-02-28
Abstract
No abstract record available.
Inventors
- 👤 Allen J Burkhart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:28
CPC Classifications
A; A01; A01D; A01D45/00; A01D45/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1323498A
Cited
US1891526A
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US2052802A
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US2133217A
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US2240273A
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US2243650A
Cited
US2380161A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-20 | 1953-08-22 | 1954-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-20 | 1957-08-22 | 1958-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-20 | 1961-08-22 | 1962-02-21 | $7700.00 | Window Closed / Lapsed |