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US3306371A
Expired / Lapsed
US
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Rotary cultivators
Assignee: Individual
•
Filing: 1965-06-14
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Granted: 1967-02-28
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Expires: 1985-06-14
Abstract
No abstract record available.
Inventors
- 👤 Bush Roland Eugene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:32
CPC Classifications
A; A01; A01B; A01B39/00; A01B39/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US3173498A
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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) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |