Patent US2433900A successfully refreshed from Google Patents.
US2433900A
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US
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Lifting apparatus
Assignee: Individual
•
Filing: 1943-05-01
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Granted: 1948-01-06
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Expires: 1963-05-01
Abstract
No abstract record available.
Inventors
- 👤 Edward P Grime
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:22
CPC Classifications
B; B66; B66F; B66F5/00; B66F5/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US776797A
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US875096A
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US1555842A
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US1805588A
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US1767470A
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US1816701A
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US1818077A
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GB382998A
Cited
US1900528A
Cited
US1945910A
Cited
US2377477A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-01-05 | 1951-07-07 | 1952-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-01-05 | 1955-07-07 | 1956-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-01-05 | 1959-07-07 | 1960-01-06 | $7700.00 | Window Closed / Lapsed |