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Patent US2466693A successfully refreshed from Google Patents.
US2466693A
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Crate unloader
Assignee: Hartford Empire Co
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Filing: 1944-06-03
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Granted: 1949-04-12
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Expires: 1964-06-03
Abstract
No abstract record available.
Inventors
- 👤 Paul E Fischer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:50
CPC Classifications
H; H01; H01F; H01F7/00; H01F7/02; H01F7/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US854153A
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US1200244A
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US1852322A
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US1904720A
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US1973767A
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US1898393A
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US2119725A
Cited
US2220561A
Cited
US2253283A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-04-11 | 1952-10-11 | 1953-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-11 | 1956-10-11 | 1957-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-11 | 1960-10-11 | 1961-04-12 | $7700.00 | Window Closed / Lapsed |