US2989127A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soil tilling apparatus
Assignee: FMC Corp
•
Filing: 1958-04-10
•
Granted: 1961-06-20
•
Expires: 1978-04-10
Abstract
No abstract record available.
Inventors
- 👤 Jr Lawrence C Oertle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:43
CPC Classifications
B; B62; B62D; B62D51/00; B62D51/004
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1047801A
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US2015587A
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FR873577A
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Cited
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US2535254A
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US2691928A
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US2827842A
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US2844238A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-19 | 1964-12-19 | 1965-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-19 | 1968-12-19 | 1969-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-19 | 1972-12-19 | 1973-06-20 | $7700.00 | Window Closed / Lapsed |