US2569464A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Agricultural crust busting implement
Assignee: Individual
•
Filing: 1947-10-02
•
Granted: 1951-10-02
•
Expires: 1967-10-02
Abstract
No abstract record available.
Inventors
- 👤 Edwards Ross
- 👤 Brogden Jack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:48
CPC Classifications
A; A01; A01B; A01B39/00; A01B39/08; Y; Y10; Y10T; Y10T403/00; Y10T403/71; Y10T403/7129; Y10T403/7141
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US510266A
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US532689A
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US1310924A
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US763324A
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US1087389A
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US1673184A
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US1653760A
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US2243241A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-10-01 | 1955-04-02 | 1955-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-01 | 1959-04-02 | 1959-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-01 | 1963-04-02 | 1963-10-02 | $7700.00 | Window Closed / Lapsed |