Patent US2591435A successfully refreshed from Google Patents.
US2591435A
Expired / Lapsed
US
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Tractor hoist
Assignee: Ferguson Harry Inc
•
Filing: 1945-02-23
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Granted: 1952-04-01
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Expires: 1965-02-23
Abstract
No abstract record available.
Inventors
- 👤 Hunsaker Harold James
- 👤 Mccullough Dan Crawford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:03
CPC Classifications
B; B66; B66C; B66C23/00; B66C23/18; B66C23/36; B66C23/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1509905A
Cited
US686425A
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US1558636A
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US1629592A
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US1630800A
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US1739938A
Cited
US2118180A
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US2290384A
Cited
US2322697A
Cited
US2398585A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-01 | 1955-10-01 | 1956-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-01 | 1959-10-01 | 1960-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-01 | 1963-10-01 | 1964-04-01 | $7700.00 | Window Closed / Lapsed |