Patent US2861686A successfully refreshed from Google Patents.
US2861686A
Expired / Lapsed
US
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Potato harvester attachment for removing sod, sticks, stones, etc.
Assignee: Individual
•
Filing: 1954-12-06
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Granted: 1958-11-25
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Expires: 1974-12-06
Abstract
No abstract record available.
Inventors
- 👤 Carl E Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:31
CPC Classifications
A; A01; A01D; A01D33/00; A01D33/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1199704A
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US1097439A
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US1715218A
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US2153688A
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US2212676A
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US2391412A
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US2365077A
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US2711742A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-24 | 1962-05-26 | 1962-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-24 | 1966-05-26 | 1966-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-24 | 1970-05-26 | 1970-11-25 | $7700.00 | Window Closed / Lapsed |